AMD Releases Video Driver for Windows 8 Consumer Preview

In conjunction with today’s release of the Windows 8 Consumer Preview, AMD has released a new set of drivers specifically for Windows 8. Dubbed the AMD Catalyst driver for the Windows® 8 Consumer Preview, it most notably includes full support for Windows 8’s new WDDM 1.2 features. The rest of AMD’s software features are also supported, including Overdrive, CrossFire, and Eyefinity.

Radeon HD 7000 users will be out of luck for the time being, however. These drivers do not support GCN GPUs; drivers for that will be released at a later time. Considering AMD has yet to publish a WHQL certified Win7 driver for GCN it’s safe to assume that will happen before we see a Win8 driver, particularly if AMD plans on having Direct3D 11.1 support ready for the Consumer Preview.

Source: AMD

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In Depth: Best free video converter: 12 on test

Best free video converter: 1-6

AVI, MOV, MPEG, FLV, MKV, MP4 - videos come in many different formats. Each of which can then vary in a raft of subtle ways.

Which would be just fine if every application and device could handle every possible format, but of course that isn't the case.

And so often you'll find you've downloaded a movie to your PC, phone or tablet, but either it has major playback problems - no picture or sound, say - or you can't watch the clip at all.

This doesn't have to hold you up for long, though. There are plenty of free video conversion tools which can quickly import movies in just about any format, perhaps tweak them in useful ways (change the resolution, maybe carry out basic editing operations), and export them in formats you can actually use.

And if you're aiming to view the clip on a mobile device then some of these programs can be incredibly easy to use. They'll often include a library of presets for common devices, so if you want to export a video to an iPhone 4, say, you won't have to manually tweak every possible setting.

Just choose the iPhone 4 preset and the program will automatically configure itself to produce the precise format you need.

The only real problem is that there are now so many free video conversion tools that you might be left wondering, which is best? We're curious, too - so we decided to pitch 12 popular packages against each other in an effort to find out.

NOTE: While these tools are free, many now include browser toolbars and similar addons. If you'd rather not install these, don't just keep clicking Next during the setup process: read each screen carefully. Choose "Custom" installation options where they're offered, and clear the checkboxes next to any "bonus extras" which you'd rather not have on your system.

Best free video converter: How we tested

Our first measurement of video conversion tool quality comes in looking at its features. How many formats can it import and export, for instance? Do these cover all the options you'll need?

We checked to make sure that you can carry out basic tweaks during the conversion process, like changing the video resolution. And we awarded extra marks for bonus features, such as the ability to edit the source video before converting it.

Video editing can be a complicated, jargon-packed process, so we were also interested in ease of use. We wanted our conversion tools to provide access to low-level conversion options (sometimes that's very useful), but these should never get in your way.

Our utilities should ideally provide sensible default settings at all times, and device presets as well, so you can export to, say, an iPad 2 just by selecting it from a list.

And as converting videos can take a very long time, performance is particularly important. To measure this, we gave each conversion tool four tests.

Starting with the source files from Big Buck Bunny, we converted the 1080p surround-sound AVI to 320x240 WMV; tried transcoding the 480p MOV to MP4 (vital as that's such an important format these days); and converted the 320x180 MP4 file to both FLV and MPEG2.

AVI to WMV

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MOV to MP4

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MP4 to FLV

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MP4 to MPEG2

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And while these tests don't cover every possibility, they provided a great deal of very useful information. So read on to discover which conversion tools you really need to consider, and the programs you should avoid at all costs.

1. Any Video Converter Free 3.3.2

Compatible with: Windows 2000, XP, Vista, 7

Video conversion tools can sometimes be scary, complex, intimidating - but not this one. If your needs are basic then you can just drag in your files, choose the output format you need from the wide selection on offer, click "Convert Now!", and the program will go to work. It's all very easy.

There's also plenty of power here, though. Any Video Converter Free can download videos directly from YouTube, Google, MetaCafe and so on, for instance. Handy editing options include the ability to trim and crop footage, and apply useful special effects (sharpen, reduce noise, tweak brightness or contrast). And once you've chosen an output profile then you can customise a few of its settings, perhaps choosing a new resolution, frame rate, bit rate and so on.

Performance was a little disappointing, especially considering that Any Video Converter is (like many similar programs) mostly just a front end for the excellent FFMPEG conversion library. Only two programs were slower in the important MP4 conversion test, and the others weren't quick, either.

And there was another problem. The program includes a "Burning to DVD" profile which is supposed to burn your videos to DVD when the conversion is over, but just gave us an error message.

This is a pity, because Ant Video Converter is well designed and had lots of useful functionality. It only offers limited control over the conversion process, so video experts may want to look elsewhere, but if you're more interested in ease of use and can put up with the below-par performance then this could be an acceptable choice.

We liked

Easy to use, downloads from YouTube, useful video editing features, supports many input/ output formats

We disliked

Only limited control over the video conversion, DVD burning didn't work for us, disappointing performance

2. Free Studio 5.3.3

Compatible with: Windows XP, Vista, 7

Free Studio is a suite of 45 freeware tools to handle all kinds of video-related tasks: downloading, ripping, burning, and of course converting clips from one format to another.

A front end menu tries to integrate all these, but it still takes some exploration to find what you need. Once discovered the relevant tools, though, they follow the usual route: import your chosen videos, choose the appropriate output format or device, and convert at a click.

If Free Studio doesn't provide a profile to suit your needs, then it's possible to configure a new one. So if you need to create 1024x768 AVIs, say, then in a click or two you can build a profile which uses that resolution, and in future you'll be able to simply select it from the list. Which is handy, although there are only very few tweaks available within a profile: video frame rate, bit rate, resolution, audio sample rate, bit rate, the number of audio channels, and, well, that's it. (You can't even choose the audio codec, typically - the program selects what's appropriate for the format.)

When it comes to performance, the story is mixed: Free Studio did very well in the important MP4 conversion tests, but was poor at creating FLVs, and couldn't produce an MPEG2 file at all.

And so if you're looking for real video conversion power this Free Studio probably won't be good enough. But if you only need to convert videos occasionally, maybe to MP4, then Free Studio may deliver exactly what you need (and its ease of use and host of extras are a welcome bonus.)

We liked

Well designed, many extras (download, ripping, burning tools), good MP4 conversion speed

We disliked

conversion functions are inconveniently split across several programs, only limited conversion tweaks, slow FLV export, failed to create MP2 file

3. Format Factory 2.80

Compatible with: Windows XP, Vista, 7

Format Factory offers a good balance between ease of use and video conversion power. It's easy to get started: you can choose the type of file you'd like to create, add some videos to be converted, and pick your required output settings. But you also just get a little more control over those settings than in some of the more basic tools here.

When creating an MP4 movie, for instance, you can choose the encoding option (DivX, XviD, H264); the video resolution; frame rate, audio codec, sample rate, volume and more, even rotating the image, or adding subtitles or a watermark, if you like.

But if you're in a hurry, no problem, the program also provides multiple profiles which configure all your settings in a click. The MP4 conversion, for instance, has 27, with descriptive names like "Mobile Device Compatible 320x240 MPEG4", so it's easy to find what you need. (And if for some reason it isn't, then you can easily create new profiles to do whatever you want.)

Performance wasn't bad, either, with Format Factory scoring well on our HD to MP4 and WMV tests, although its inability to run our MP4 to FLV conversion dragged its mark down.

The programs mix of usability with plenty of advanced conversion tweaks does mean it's worth a look, though. And as a bonus, there are plenty of extra options, including the ability to create animated GIFs from movies, extract video soundtracks, convert audio and image files, rip DVDs and CDs, and more.

We liked

Advanced conversion options, plenty of built-in conversion presets, watermark and subtitling support, bonus audio/ image/ other conversion types, good MP4/ WMV output performance

We disliked

Failed to convert one test file

4. Freemake Video Converter 3.0.1

Compatible with: Windows XP, Vista, 7

If you need your conversion tool to support the widest possible range of formats then Freemake Video Converter could be ideal: it supports a lengthy list of video types, as well as being able to import audio files, images, DVDs, even YouTube URLs.

Once your movies have been imported, you're able to remove sections you don't need via a simple video editor. There's a useful option to set a limit on the maximum size of your movie, or you might choose to import a series of files, but then join them together so they're saved as a single video.

Export support for files is a little more basic, being mostly limited to the essentials, and you can only tweak a few elements of your chosen format (codec, resolution, frame rate, audio and video bitrate, sample rate, channels).

Exporting to mobile devices is better, however, with support for many Apple, Nokia, Samsung, Blackberry and other device types (there are even pictures of many phones, rather than just the model names, to help you choose). Choose the appropriate device and the program will automatically configure itself to produce compatible videos: all you have to do is click Convert and watch it happen.

And you won't be watching long, as Freemake Video Converter delivers marginally above-average performance, not least because of its CUDA support.

A few more output formats would be welcome, then, as would some more advanced conversion tweaks. But that's really just nit-picking: Freemake Video Converter is an excellent tool which already has more than enough power to satisfy most people's transcoding needs.

We liked

Wide input file format support, lots of device export options, simple video editor, can limit converted video size, reasonable performance, easy to use

We disliked

Output file format support is limited, can only tweak a few aspects of the converted videos

5. Handbrake 0.9.5

Compatible with: Windows XP, Vista, 7, Mac OSX, Linux

HandBrake is probably the oldest of our crop of conversion tools, having been around since 2003. And it's also one of the more specialised, being best at transcoding videos to run on Apple devices. The program can only export MP4 and MKV files, for example, and its output presets are mostly Apple related (iPod, iPhone, iPad and so on).

As long as your target device plays MP4 files, though (and most do), this doesn't have to be a major problem. And HandBrake does enable you to customise the video conversion process in many different ways, which could be appealing if you find the competition a little too basic.

Once you've selected your source files, for instance, you can of course choose the output resolution, video and audio codecs, frame rates and so on. But there are also options to crop the source footage, add subtitles, or include extra audio tracks. You can include chapter markers, or apply some useful cleanup filters (Detelecine, Decomb, Deinterlace, Denoise, Deblock). And real experts can access many low-level encoding and analysis details via the Advanced tab.

What you don't get here are spectacular conversion speeds, unfortunately: Handbrake's MP4 output performance remained resolutely average in our tests (although perhaps it could be improved if you spend time tuning the program's more advanced settings). Still, if you need lots of encoding options, and can live with the meagre selection of output formats, then Handbrake may still be a reasonable transcoding choice.

We liked

Many useful editing options and video filters, advanced encoding and analysis tweaks

We disliked

Only exports MP4 and MKV files, average conversion speeds

6. Internet Video Converter HD

Compatible with: Windows XP, Vista, 7

If there were awards given for horrible interfaces then Internet Video Converter HD (IVC HD) would be an obvious candidate. It's a cluttered mess, confusing and poorly laid out, and will quickly have you wishing you'd downloaded a more conventional tool, instead. The program has received quite a few positive reviews, though, and once you get past the dubious design decisions then a few plus points do emerge.

IVC HD can download videos from YouTube and 12 other video sharing sites, for instance. It's able to create Flash files (FLV or SWF) from your videos, and can generate the HTML to host them. Editing options include the ability to trim, rotate, deinterlace or sharpen your source footage, and converting HD footage from one format to another is simplified by a convenient set of built-in presets: just choose the one which matches your needs and you'll be ready to go.

The basic conversion process isn't too difficult to follow, either, once you've tried it a few times. Choose your input video, pick an output format, customise a few settings and click Convert: even if the developer is entirely clueless about interface design, the core procedure is just the same as with more normal tools.

Performance isn't quite as good as you'll get elsewhere, however, with the program delivering marginally below average conversion speeds in our tests. And so, if you really need the video downloading feature, or you want to generate Flash files (SWF) with matching HTML then IVC HD might be worth a try, just about. But otherwise we'd recommend you ignore it entirely

We liked

Handy HD conversion presets, downloads online videos from many sites, can generate HTML for Flash files, some basic editing options

We disliked

Dreadful interface, below average performance

Best free video converter: 7-12

7. KoyoteSoft Free Video Converter 3.1.0.0

Compatible with: Windows XP, Vista, 7

At first glance, Free Video Converter doesn't look like the most impressive of transcoding tools. File format support is limited, for instance; you can only tweak the most basic aspects of the output video (codec, resolution, frame rate, bitrate and so on); and there's nothing like the bonus features you'll get with some of the more powerful competition.

Try a few conversions, though, and the program will soon seem more appealing. Importing videos is just a matter of dragging and dropping, for instance (and it supports all the formats most people will ever need). There are lots of presets available for various devices (Apple, Android, Sony, BlackBerry, Xbox and more). And while there's only one editing tool, it's perhaps the most important, allowing you to trim unwanted footage from the start and end of your clip.

There are also some issues, though. And the major one is performance. The program proved particularly slow in our HD conversion tests, and the other times weren't great, either. While elsewhere, minor irritations included the lack of a local help file, always an issue when you're dealing with such a complex topic. And an interface quick means you can't manually type the video bitrate you require into the program (you're bizarrely forced to use assorted buttons and a slider, instead).

Free Video Converter scores highly for its ease of use, then, and if you only occasionally need to run simple conversions of small files then it may be good enough. If you're after power or performance, though, the program will probably disappoint.

We liked

Easy to use, lots of device presets, video trimmer

We disliked

Relatively limited file format support, some interface quirks, poor HD transcoding performance

8. MediaCoder 2011 R10

Compatible with: Windows XP, Vista, 7

If your video conversion needs are complex, and only the most powerful tool will do, then start by downloading a copy of MediaCoder 2011 - it's packed with functions and features.

The program doesn't just import all the main video formats, for instance: it can also download streaming videos, read CDs and DVDs, connect to video capture devices, and more.

In-depth editing options then allow you to trim and crop your footage; tweak levels, brightness, contrast, saturation, hue and gamma; and apply filters to deinterlace, denoise, deblock, dering and otherwise enhance your footage.

You can then output to all the usual video formats. And not just using whatever settings the developer thought best. MediaCoder gives you access to an incredible number of options, probably more than you ever realised existed (the Advanced XviD section currently contains 39 settings all on its own).

And smart optimisations, along with support for CUDA and Intel video acceleration technologies, helps to ensure that MediaCoder delivers the best possible performance. It was the fastest in our tests by a large margin.

With all this power comes a degree of complexity, unsurprisingly. The author has tried to combat this by providing a wizard and some simplified device-specific interfaces to help configure MediaCoder's key settings, but it's still trickier to use than most of the competition.

If you'll use the program's extra power, though, don't let that put you off. It doesn't take too long to master the MediaCoder basics, and your efforts will be handsomely rewarded by its powerful features, extreme configurability and great performance.

And if you must have something simpler, check out the program's website: there are simpler, more specialised versions of MediaCoder (for Apple devices, say, or mobile phones) which deliver similar performance but are much easier to use.

We liked

Wide input format support, powerful editing, vast range of conversion settings and tweaks, excellent performance, straightforward configuration wizard

We disliked

Interface can be intimidating, relatively complex to use

9. Miro Video Converter 2.5

Compatible with: Windows XP, Vista, 7

Throughout these tests we've been giving extra marks to programs which allow us to tweak the video conversion process, change various advanced settings to produce the precise results we need. But if you don't care about any of that, and just want the easiest conversion tool you can find, then Miro could be interesting.

The program really is very simple to use. All you have to do is drag and drop a file onto it (all the major formats are supported), choose an output preset (Apple and Android devices are covered, along with the PSP and basic MP4/ WebM/ Theora options) click Convert, and that's it: Miro will begin converting your movie right away.

This simplicity does mean the program has plenty of limitations, though. You can't tweak the resolution or frame rate, for example. There's no talk of codecs here, no editor, no configurable sample or bit rates. You can't add additional presets for your own devices.

It's not even possible to process more than one file at a time, so if you've ten files to convert then you'll have to drag and drop them individually.

Still, conversion speeds proved acceptable, with the program ranking fourth out of twelve in our MP4 export test. And so, if you occasionally need to convert a single video to play on your iPad, say, then Miro will get the job done fairly quickly and with the absolute minimum of hassle.

If you'd like wider format support, more (or any) conversion tweaks and a few video editing options, though, then move along to the next program: you won't find any of those items here.

We liked

good input format support, drag and drop simplicity, above average MP4 export performance

We disliked

no configuration options at all, no editing tools, very few output formats, can't add new presets

//score//

58%

10. Quick Media Converter HD 4.5.0.0

Compatible with: Windows XP, Vista, 7

Quick Media Converter HD does its best to create a good first impression by opening in an "Easy Mode", with minimal conversion options and plenty of bright, colourful icons. But it's not long before you realise that "Easy Mode" isn't really so easy, at all.

The program tells you to drag and drop your input videos, for instance, but that didn't work for us. Many of the presets are confusing, basic and inconsistent. And while "Easy Mode" includes resizing and "bit rate select" buttons, most of the time they don't work, either.

Switching to HD Mode is a little better, in that you can choose from some common target HD resolutions.

But then Expert Mode introduces new problems, in that it allows you to create all kinds of impossible combinations (like converting videos to GIF files using the H264 codec). Presumably they're hoping experts will choose more sensibly, but a little help from the interface would still be welcome.

And other interface irritations include the horribly basic integrated video player, which doesn't have a progress bar, so you can only play clips from the beginning - there's no option to jump ahead.

Still, at least Quick Media Converter HD uses FFmpeg to convert your files, so we thought conversion performance would be acceptable. But no, it turned out the program wasn't great here, either. It did reasonably well on our small file tests, but when converting HD files Quick Media Converter HD was clearly outperformed by most of the competition.

So whether you want simplicity, advanced controls or reliably speedy conversions, Quick Media Converter HD just doesn't deliver - give the program a miss.

We liked

Colourful interface, multiple operating modes, lots of device presets, reasonable SD encoding performance

We disliked

Poorly designed, often confusing and difficult to use, feeble video player, below average HD conversion speeds

11. SUPER 2011.49

Compatible with: Windows 2000, XP, Vista, 7

While many video conversion tools try to hide their more involved settings, SUPER displays them up front, cramming its opening screen with more options than some of the competition have in total. And that can be a little intimidating, if you're a transcoding novice.

In reality, though, the settings are sensibly grouped, leading you through the various options you need to take: choose an output file format, a video and audio codec, select a resolution, frame and bit rates, and so on. You're able to drag and drop a bunch of files onto the program, and with a single click SUPER will then try to process them all.

Whether it'll succeed is another matter. SUPER uses popular tools like FFmpeg to handle the conversions, so they really ought to be reliable, but it did give us errors on some conversions (and we've no idea why).

The real problem here is the horrible performance, though, particularly in the HD conversion tests, where SUPER trailed way behind everyone else. (Putting this into perspective, MediaCoder was more than 17 times faster in our MOV > MP4 benchmark.)

It's a shame, because SUPER does have lots of interesting features: it can import streaming videos (rtsp, mms, http), understands playlists (asx, m3u, pls, wmx), and includes many advanced configuration options. In our view that's not enough to make up for the dire performance, though, and so you'll be better off looking elsewhere.

We liked

Imports streaming videos, lots of advanced configuration options, supports plenty of input and output formats

We disliked

Interface isn't the best, poor performance, various quirks and irritations

12. XMedia Recode 3.0.6.0

Compatible with: Windows XP, Vista, 7

XMedia Recode made a good impression from the moment we launched it, thanks to a clear and well-designed interface which for the most part works just as you'd expect.

Here's a box for your input files, for instance, and of course you can drag and drop whatever videos you like there. If your needs are simple then you can get by with just choosing an output format or device profile from the huge selection on offer. And if you need more, then the program organises more advanced conversion tweaks under various tabs so they're easy to find.

It's true, some of these are, well a little obscure ("Offset between I and P-frame Quants"). But there are plenty of more accessible settings here, too, with options to help you resize, crop, colour correct, deblock, denoise, deinterlace, sharpen and otherwise improve your source footage. It's an impressive package.

One small issue is that your list of imported videos can't be converted directly. You must set up the output format you need, select the files and choose the "Add Job" option before the Encode button becomes available, which isn't immediately obvious. The program doesn't have any English language help, either, so if you don't understand something then you're out of luck. And HD encoding performance was below average.

Conversion speeds in our other tests proved more acceptable, though, and the mix of powerful functionality with an easy-to-use interface gives XMedia Recode a lot of appeal. If you're a mid-level user who needs access to advanced conversion tweaks, but only occasionally, then this could be the ideal solution.

We liked

clear interface, vast array of device profiles, wide file format support, many useful filters/ editing options/ advanced configuration tweaks

We disliked

No English language help, below average performance in our HD AVI > WMV test

Conclusion

Which is the best video conversion tool, then? What our tests reveal is there's no one package which will suit every need, and the best program for you will depend very much on your requirements.

If you just want to convert the occasional video to play on a mobile device, for instance, and don't want any conversion complexities at all, then Miro should appeal. Drag and drop a file, choose your device, click a button and that's it: there's nothing quite as simple here, and its MP4 creation performance isn't bad, either.

Most people will want more power and configuration options, though, and the best all-round combination of power and ease of use is to be found in Freemake Video Converter, our pick for the novice and casual video conversion user. The interface is clean and well designed, it supports lots of input and output formats, there are useful extras, and while performance isn't the best, it's perfectly acceptable.

If you need more control over your output video, though, the next step up is XMedia Recode. Performance isn't so great, but the program makes a host of advanced settings available, while an excellent interface ensures it remains generally easy to use.

Our highest score has to go to MediaCoder, though. It's more complex than the other tools here, but if you're a confident PC user then you'll quickly master the basics. And what you'll get in return is access to more video conversion tweaks than you ever knew existed, and performance which effortlessly outstrips the competition in just about every department: it really is a staggeringly powerful tool.

Tutorial: Best codecs for video and how to encode

Best codecs for video

Our mobile devices are faster, the way we watch videos on our TVs has changed, and the way we buy and store content is completely different from 20 years ago. We're in the middle of a home media revolution, where shelves of DVDs are being pushed into NAS boxes and discreetly hidden away.

We're only in the infancy of this revolution, though. That means we've yet to find a definitive method, and there are as many good solutions as there are pitfalls.

Codecs are the best example. If you've had anything to do with digitised video over the last 10 years, you'll know that video performance is dominated by the black art of manipulating these encoding and decoding programs. Finding the right one is a balancing act between the amount of processing that goes into creating the video file and the amount required to decode it.

Too much on the input and you'll be waiting until next Wednesday for your file. Too little and the new generation of HD decoders plugged into your TV won't have enough grunt to reconstruct the video stream at 60fps.

Codecs call for careful consideration. That's why, for high definition, it's often better to use a codec designed specifically for the job rather than one from the '90s shoe-horned into a higher bit-rate and resolution than it was ever intended for.

The same is true for any other disparate playback devices. You get the best results from a movie encoded specifically for your usage scenario, whether that's mobile access across the 3G network or playback on a wireless tablet.

We're going to help you solve these challenges using a mix of hand-on tweaks, free software and plenty of acronyms, taking you from 1990s DVD diva to 21st century streaming media mogul. You'll find everything you need to become an expert over the next six pages.

The best codecs

Best codec for high definition

H.264 & MKV

Before we start, we need to first make a distinction between the codec used to store the video data and the container used to encapsulate everything else, because the two are often confused.

The most popular container for high definition content, for example, is called Matroska, as denoted by its MKV file extension. Matroska isn't a codec in itself, because it doesn't define how to encode and decode the video data - it simply stores the bytes from a codec in such a way that MKV-compatible applications know where to find everything for playback. That could be the video, audio and subtitle data (if present), all of which can be encoded using different MKV-compatible formats and codecs.

That's why you always have a choice of which video codec to use with a container. With MKV files, for example, the choice is usually between H.264, MPEG-4 and VP3, the latter of which is based on Theora. All three use similar technology, but the first two are far better than the third.

For high definition, we'd recommend H.264. This is often represented by x264, which is the free software implementation of the codec.

Bit-rates and resolution are important too. 1080p source material has 2.25 times more pixels than 720p, and higher rates can be harder to decode on your playback hardware. As a rough approximation, we recommend generating a file with a size within the 8-12GB region for a typical two-hour HD movie. To maximise quality, aim for a 12GB+ file with a bitrate of 10+ Mbps.

As for the choice of audio codec, this is down to your AV setup's capabilities. Our preference is not to touch the audio at all and use the 'pass-through' option in your encoding software. DTS and AC3 audio streams can be passed within MKV, and this will embed an exact copy of the audio tracks, as found on your original media, within the MKV file, which should play back on your equipment the same way it would with the original.

Best codec for streaming

MPEG-4

H.264 has become one of the most common codecs for high-quality streaming across the internet thanks to portals like YouTube and Vimeo. It's therefore no surprise that it's good at providing a high quality, homogeneous and predictable video stream across a limited bandwidth.

It's a great choice for streaming too, if you encode your video and drop it into a MOV or MP4 file, but we've found that its closely related alternative, MPEG-4, offers a similar pedigree and is usually a better choice at low bitrates over limited bandwidth.

The relationship between MPEG-4 and H.264 is complicated, as they're both parts of a wider MPEG-4 specification, but it's also a codec that's closely related to the data on a DVD that's streamed as digital television. That means it can produce better and more robust results under bandwidth and processor limitations.

There are as many container formats for MPEG-4 as there are for H.264. They include stalwarts like AVI, MOV and the raw transport stream (TS), which you will often have found dumped from your DVB hardware, as well as newer variants like MP4 and MKV. Which you choose will depend on the compatibility of your playback device, but encoding them shouldn't be too difficult.

The only reliable free tool is the open source FFMPEG utility, which you can use to create MPEG-4 compatible files, although there are plenty of expensive commercial options available that may stick closer to the original specification.

When it comes to encoding, the main limiting factor is available bandwidth rather than playback hardware. You may want to stream video across a wireless-N network, for example, and while its specification may boast a transfer speed of 108Mbps, the results are seldom as fast as promised.

Thanks to the vagaries of distance, interference, other users and hardware, wireless 802.11n is seldom fast enough for high definition video, and anything with a lower bandwidth is going to require a compromise. The same is probably true of your broadband connection. You might want to stream videos across the internet from your NAS, for instance, but this operation will be limited by your broadband upload speeds, which are often far less than 2Mbps.

This means you need to find a compromise between resolution, bandwidth and quality that hits your bandwidth sweet spot, and unlike the limitless world of high definition, you'll also need to compress the audio. The codec you choose will depend on the playback hardware, but the most common options is MP3 encoded through Lame.

Best codec for iOS

H.264 and MOV

Even Apple's portable devices are constrained by bandwidth and hardware. That means you need to make as many cuts as you can without sacrificing quality. If you're encoding video for playback on an iPad, for example, it makes good sense to scale your original material to 1,024 x 768 before encoding.

This is good practice for any encoding job where you know the end platform is the only place your files are likely to be played. You should also consider whether you plan to output the video from the device to a bigger screen. For example, you can connect an iPad to a TV and get 720p output, which may affect your choice of resolution. Apple's mobile devices also combine with the software to provide excellent video acceleration, getting the best possible video quality and battery life from your device.

In order to capitalise on these advantages, your video files need to adhere to Apple's strict codec discipline, which at least makes the job of choosing a codec easier. For best results on your iOS device, you need to choose an MOV container using the H.264 codec. 29.97fps (NTSC) is the best framerate to choose, which you can enter as 30,000/1,001 if you're using FFMPEG, and audio should use the AAC codec with a bitrate of around 160kbps.

Best codec for Android

H.264 or AAC-LC

Android devices don't have the same degree of lock-in as their Apple counterparts, which means you're free to install a media player like VLC that can handle many kinds of video file. There's no standard hardware configuration, so playback performance and capability are specific to each device.

Many will accelerate Flash, or even DivX files, because hardware acceleration is more general and not limited to a single codec, but there are still some Google-endorsed standards based on H.264 and MPEG-4. Google's documentation recommends H.264 with a bitrate of 500kbps, and AAC-LC at 128kbps for audio.

Resolution should be the same as the destination device, and you can use an MP4, 3GP or even a raw TS as a container. Google now has its own container and codec combination in WebM. This is also worth a try, because the VP8 codec it uses is closely related to H.264 and is likely to benefit from acceleration now that Google owns Motorola's smartphone division.

The law

Here in the UK, when you format-shift your CD and DVD collection from the discs you own to another device, you're currently breaking the law. That's because, in legal terms, only the owner of the copyrighted material can permit its duplication.

This is also a law that's been openly flouted since the 1980s, when we all started taping singles from the top 40 countdown on a Sunday evening. Music and video players, from Microsoft's Zune to Apple's iPod, have been allowed to flourish despite this obvious flaw in UK law.

This is unlike the US, which has a fair-use caveat that allows personal copying if you're moving the media to a different device for personal use, but things in the UK could be about to change.

The Hargreaves report on intellectual property, a preview of which was published in May [PDF], recommends that the government amends the rules on format shifting to allow for a stance similar to that of the US.

In August, the cabinet declared its full support for those recommendations, hopefully paving the way for a change in the law. Until then, you can't legally copy a DVD or CD that you own and stream it to another device. Consider yourself warned.

Handling audio

We've spent a lot of space discussing video encoding, but in some ways, audio can be even more important. When you're streaming a movie, video data can be scaled to fit the end resolution and format regardless of the input format, but audio isn't as flexible.

If you only include the surround channels, and your playback device supports only stereo, you won't typically hear anything. Some players can downmix a surround stream, but not many, and the ones that can are usually PC-based.

The solution is to encode the stereo and surround tracks if you want to keep the surround data, or just the stereo mix if you don't. Tools like Handbrake will let you downmix a surround stream if that's the only one available, or choose the stream you want to encode from the Track dropdown menu.

If you want to re-encode a surround stream, you can usually choose between AC3 and DTS, depending on which codecs are installed, and lower their bitrates. This will preserve the multi-channel aspect of the audio, but you will need to make sure your playback device is connected digitally to an amplifier that can decode it.

How to encode your movies

Encode your movies

Provided you're legally entitled to do so, getting your data off an optical disc and onto your streaming server or portable device isn't difficult. There are two stages.

The first decodes the disc and grabs the raw data from it, so you'll need the hardware required by your media. This step might be redundant if the source of your material is a legitimate unlocked download, or perhaps a recording from a digital television receiver or PC-based DVB card.

The second stage takes this raw data and runs it through the number crunching routines that generate the final file. Success on the first part depends on the protection used by the source disc. If there's none, then you'll be able to copy and encode your movies in a single step. If there's encryption, then you'll first need to remove this from the data before you can begin the transcoding stage.

Selling software that side-steps this protection is legally dubious, especially in the UK, but there are free tools available that will do the job, leaving you with either a copy of the DVD on your hard disk, or a new ISO burned to disk.

The best tool we've found for transcoding is called Handbrake. This is an open source application that harnesses the power of several free codecs, including FFMPEG, x264 and libtheora, and turns your video data into a file you can easily stream or move to a portable device. You don't even need to worry about the intricacies of codec configuration.

Handbrake includes a list of profiles you can use to quickly select the end device to load the best values into the codecs. These can be previewed and altered before you commit yourself to the final process.

Encoding a film, especially in high definition, can easily take several hours. But the length of time is dependent on the power of your system, so this might be a good time to upgrade that aging Core2Duo you're sitting at.

How to encode your movies with Handbrake

1. Select a source

We installed the the nightly build of Handbrake because it often has cutting edge features and speed improvement, but the official release is more stable. When you run it, you need to select the source location for your movie. After clicking in the 'Source' icon, select the optical drive, folder or file you want to convert.

2. Choose a profile

Once Handbrake has scanned for chapter information, select a preset for the destination format and choose a title from the source. If your presets don't include Android devices, choose 'Reset' from the Options menu. Handbrake defaults to the longest title, which is probably what you need unless you're after the outtakes.

3. Tweak presets

Adjust the video and audio encoding options to suit your own requirements (see the main text for some hints), and use the 'Picture' page to change the resolution, if required. You can use the 'Preview' window to generate a 10-second clip with your settings, then click 'Start' to generate the final file.

How to build the best media PC

Transcoding a video from one format to another takes a lot of CPU power, so a powerful machine will save you hours of waiting and, eventually, your sanity. But before you hand over your credit card details to your favourite retailer, you should first consider whether an upgrade is really necessary and how often you're likely to want to encode a movie.

Initially you'll want to transfer as much of your current collection as you still watch to your digital library. That's a big hurdle, but also a finite one. It might not be worth investing in the best hardware if it's only going to save you a couple of weeks of pain.

Your super video transcoding PC might become a costly white elephant whose resources you're unlikely to test again after an initial splurge. If you only buy a few movies a month, there's no real need to upgrade your hardware. Anything from the last five years will handle even a high definition movie overnight. That said, if you want an excuse to upgrade your machine, a big encoding job is the perfect opportunity.

Processor overheads

As with any upgrade, the best place to start is with the CPU. Most of the codecs we've mentioned use the free x264 library, which is widely considered to be one of the best available, regardless of price. It will use as much processing power as you throw at it, so the CPU question is easily answered with 'the best you can afford'.

If money is no limit, that means something sporting Intel's Sandy Bridge architecture, with its requirement for a LGA1155 CPU slot and memory accelerating potential of up to quad-speed DDR3-1333. We'd recommend the Intel Core i7 2600k, which can now be had for around £240. It has four cores and it's fast.

If you're looking for something a little cheaper, or a CPU that might not require a complete architecture overhaul, AMD's six-core Phenom II X6 Thuban represents great value for money for that amount of processing power, as it can now be bought for around £120.

Video encoding is also hungry for memory, so fit as much as either your motherboard or wallet can take. The more you add, the less your system will have to read either your slow optical drive, or the hard disk.

Unfortunately, graphics cards don't change the CPU equation, despite the promise of GPU-accelerated movie encoding. Modern graphics cards, and the APIs their vendors have built to access their raw number crunching abilities, have failed to offer the advantages that seemed imminent in 2008.

The current consensus on the encoding software that's able to shoe-horn a GPU into encoding duties is that the quality of the output just isn't good enough. As a result, CPU grinding is still the best route for the serious media collector.

The only good news is that this could save you a few pounds, because the latest Sandy Bridge Intel CPU's offer SoC - systems on a chip - and these include graphics. They might not be good enough for the latest games, but they're definitely good enough to show you what you're doing while you fine-tune your Handbrake codec parameters, and for playback.

It might also be worth investing in a screen capable of 1,920 x 1,080 if you want to check the encoding quality of your high definition material without moving it to your television.

Finally, for the hardware, don't forget to add an optical drive that can read your media. SATA II Blu-Ray players can be bought for as little as £50.

With your hardware sorted out, you just need to choose your operating system. There's nothing wrong with whatever version of Windows you've already got, but you will need the latest updates to version 7 for the modern chip designs and drivers, and a 64-bit installation is essential if you've got more than 4GB of RAM at your disposal.

Storage issues

There's no getting around the fact that movies take up a lot of space, which means your storage provision is just as important as the rest of your hardware. Capacity is probably the most important feature to consider, because you may be storing your entire collection on the same machine.

However, you don't need to store all your films on an internal drive. A portable remote drive attached to a PogoPlug is a great solution, as external drives are readily available with 2TB of space, for example, for about £60. Failing that, look for a NAS that offers streaming built-in.

For the internal drive, speed becomes a more important factor. The faster the drive, the more quickly your super-fast CPU will be able to crunch through the data. The fastest drives you can get are solid state, and while they're relatively limited in terms of storage capacity, as long as you're not planning to store the resulting files on the same drive, you won't encouter any problems. You can now get 120GB of SSD storage with a SATA II interface and a 3.5-inch form factor for £140.

Media playback hardware

The hardware you use to access your newly complied media collection is utterly dependent on the device it's being connected to. Our recommended storage solution is a Pogoplug, which is capable of streaming media using a wide variety of protocols. If you're playing your movies on an Android or iOS device, you can download a free app that can access your data through the cloud and stream content directly from your storage device, for example.

Unless you're happy connecting your laptop directly to your TV, you'll need a hardware streaming client. The premium version of Pogoplug, like many other streaming servers, can send video data using the UPnP protocol, and dozens of devices will be able to transform this into high definition video.

You might already have a suitable device sitting under your TV, because two of the most readily accessible devices are Microsoft's Xbox 360 and Sony's PlayStation 3 games consoles. If you do need a separate unit, we recommend investing in one of the latest Popcorn Hour boxes, which are quiet, simple to use and capable of playing virtually any codec you throw at them.

Local streaming and movies on the go

Local streaming

Now you've got your content encoded and ready to go, learn how to stream it across your local network to any device Networking is the most important part of your setup to get right and can easily become the weakest link in the chain, making all those codec refinements you've just spent an hour on redundant.

There are two principle aspects of networking that affect video streaming. The first is bandwidth, because streaming high definition video is probably the most bandwidth intensive task you're likely to perform, short of running a Tor exit node.

The second is reliability. This is important because even if you have the bandwidth, you also need to ensure that packets are transferred not just quickly, but with enough consistency to ensure your player never goes hungry. It's not like web browsing or downloading game updates - video needs to arrive at your playback device as a predictable and constant stream of blocks.

This provision of data starts at the PC or NAS that holds the videos. Data access needs to be quick enough, which isn't always the case with older units or cheaper NAS devices. You can easily work out how much bandwidth you need because the bitrate value for video encoding is often the same metric used for network speed. If your total bitrate exceeds that of the available bandwidth, you're likely to run into problems.

This competition for bandwidth can cause problems with wireless networks in particular. Any 802.11n wireless gateway will have enough theoretical bandwidth, but not if slower devices are connected at the same time, or if several people are streaming video at once. That's what makes them fail.

The obvious answer is to have two networks - one for video streaming and the other for everything else. Both networks could even be wireless, because several modern wireless routers, like the FritzBox 7390, can now run two frequency bands side by side, effectively offering the advantage of two networks without the hardware overhead. This lets you set your family up on one, for example, and your video network on the other.

As the hub of your network, the router is vitally important. You might want to consider using a standalone switch rather than an ADSL/wireless/router combination, because these are less likely to overheat in use and let you siphon off your video network from your standard connections.

For the ultimate in bandwidth provision, we recommend using a powerline network for your video data and a wireless router for everything else. Ethernet through a powerline network is slightly more costly than wireless, as you'll need a plug capable of AV speeds for both the router, your NAS and each playback client. But if you've already spent a fortune on the equipment that can make the most of HD content, as well as the movies to play on it, the extra £100-150 for those three units is worth it.

They're also plug and play, and after a few button presses, you'll have a network that won't destroy the suspense in the gas station scene from No Country for Old Men just because someone else is microwaving noodles.

The final network consideration is the limit on your upload bandwidth. For domestic ADSL installations, this is likely to be the most limiting factor in streaming your movies to your devices while you're out and about. Typical upload speeds are in the region of 500-800Kbps, for example, which is enough for a low resolution, medium quality film.

But even this number can vary, depending on your distance from the exchange. Users of an ISP that support Annex M, like O2 and Be, or BT's new Infinity broadband will have between 2 and 10Mbps, which are slightly more flexible. But it does mean you'll have to re-encode high definition material for both your television at home and for your portable devices, if you want to stream movies to your phone, tablet or laptop while you're stuck waiting for delayed aircraft at Heathow's Terminal 5.

Movies on the go

Getting content off your LAN and onto the internet can be tricky. You could run your own server, forwarding ports manually and ensuring the setup is secure, or you could use cloud storage like Dropbox, but both are convoluted.

The best option we've found is to use PogoPlug. This is a software and a hardware solution, and the best description of its facilities is that it provides a DropBox replacement where you supply the storage. With the desktop software installed on your PC, for instance, you can share specific files and folders with your online account. As long as your PC is on, you can access those files though a suite of mobile apps, desktop tools and web portals without any further configuration.

If you don't want to leave your PC on, you can buy a hardware PogoPlug unit that will connect to a USB hard drive to provide always-on access.

For movie lovers, the Android and iPhone apps will stream your movies from any PogoPlug source, depending on the video format, and you can use the web browser interface for any other device like a laptop. This works brilliantly at home, where fast wireless provides a seamless stream of data to your palm.

But the PogoPlug software can also stream video outside of your LAN. For a one off $29 payment, you can stream data from your LAN through the internet to any other Pogo-compatible device without any further configuration. This is ideal if you don't have the patience for messing with firewalls or setting up your own servers, and PogoPlugs web interface makes managing your content easy.

Just install the desktop client, select the folders you want to share, and install the client apps on your chosen device. As soon as you've created an account, registered the premium upgrade and synced your collection, you'll be able to stream movies and browse your image collection immediately.

UPnP servers

The PogoPlug is a great plug-and-play solution, but there are many alternatives that may not be quite so convenient but might offer greater flexibility.

Even Microsoft's default media player can act as a UPnP server, automatically streaming your content to other UPnP clients on your network. But another good option is a modern NAS from the likes of Qnap and Synology.

The latest firmware on these boxes include UPnP, iTunes and web streaming without any extra effort, and both manufacturers also offer iPhone and Android helper applications that can be used to view content and upload data to your NAS box while you're out and about. If you need terabytes of storage, a NAS box is the best option.

Alternatively, you can run a server on a PC. This has the disadvantage of always needing to be on to be accessible, but it is cheap. The free TVersity server, for instance, can stream almost any format to any UPnP client and is also very good at converting between formats on the fly. This is great if you've got an MOV file that won't play on a PlayStation 3, for example, because TVersity will make the changes itself.

Stream movies to your mobile with PogoPlug

1. Install the software

A PogoPlug source can be either a desktop application for Windows and OS X, or a hardware device connected to some storage. The desktop option is free if you'll limit your streaming to your LAN, and confi guration is easy. Register an account at PogoPlug.com, install the software and select the folders you want to share.

2. Add the content

You can now add the files you want to have access to. If you've shared your Windows 'My Videos' folder, for example, move your transcoded movie fi les into this folder and log into the web interface. Within a few moments, you should see your content overview updated to include the new fi les you've just added.

3. Watch a movie

Now your content is accessible from your desktop and registered at PogoPlug, you can use any access route to play back your collection. On an iOS device, for example, log in with the same account credentials and navigate to the file. You can stream immediately or download to watch later in another application.