DivX® Tech Preview adds MKV™ Video support to Windows® 7
The Windows 7 MKV video files will get the latest DivX tech preview support. This means that you can use these files in Windows 7 Media Center and Media Player, and you can also show thumbnails in Windows Explorer.
Although Windows 7 already supports the AVI/DivX files, but still the MKV files are quickly becoming the standard format for media files in HD and you won't be able to use them in in Windows Media Center or stream to an extender device like the Xbox 360 but, you can play them using VLC Player. The video files will work in any application that relies on Microsoft media support after you install the DivX Tech Preview enabled MKV support, and if your video card supports it, then it adds hardware acceleration for video decoding. You can continue to use VLC Player to play the files, but you will need this to get thumbnails working.
What's in this preview?
This DivX preview introduces support for DivX Plus HD video in applications using the Microsoft Media Foundation which is a new framework introduced in Windows 7. This preview package shows a detailed file information for files with either ".divx" (DivX 6) or ".mkv" (DivX 7) extensions and contains a native version of the DivX MKV Demux as well as shell extensions that confer thumbnail images.
Although Windows 7 maintains support for established frameworks, such as DirectShow but until today there was no other resolution for delivering content in an MKV container through the Media Foundation framework.
The advantages of enabling MKV file support in the Media Foundation framework is that it adds support for serving both DivX and DivX Plus HD video through Windows Media Center Extenders and the Windows Media Network Sharing Service for UPNP devices as well as it includes the ability to use hardware acceleration for H.264 video decoding via the system H.264 decoder. However, you need to be aware that transcoding creates some loss of quality, an additional CPU load on the server and potentially reduces picture resolution.