Highly recommend this software, I'll put up a guide later on how to use it to convert a 600MB+ .mkv to under 100MB w/o losing any quality or size in the video in just 20mins*
Description: Epic video converter software. Its completely free, and fast as hell. Most software I've seen that converts to .mkv is slow as all get out. It doesn't just convert to .mkv either, but alot more formats as well. Also even though its still in beta release, I've yet to have any problems with it.
List of formats it converts to:
Converts crap to iPhone/iPod, Xbox 360, PS3 as well.
Download Link 1: (FILESERVE) StaxRip 126.96.36.199 Beta
Download Link 2: (MEGAUPLOAD) StaxRip 188.8.131.52 Beta
Templates(Read Me Is Inside)
Size In 7z: 23.61MB
Out Of 7z: 94.5MB
*Using a Dual Core 3.2ghz CPU, 2GB's DDR-3