MKV is open source free HD video container format. It uses H.264/MPEG-4 codec and thanks to efficient usage on bandwidth, MKV rapidly bacomes popular HD video format especially on the internet. People also would like to rip their Blu-ray movie to MKV format to playback on non-Blu-ray drive based computer.
On one hand MKV is remarkable for its multi-stream feature that can hold unlimited video/audio/subtitle tracks in to one single file, and on the other hand, MKV is lack of stability and also caused some A/V out of sync issue, like case below:
Satiation: ffmpegx? I haven't really used that program widely and am perplexed. Is there any way to convert a 720p (BDAV) MKV file to an MP4 (for AppleTV) without the video being transcoded? I mean: Basically, the MKV should contain an industry-standard H.264 stream for the video, no?
Part of the problem is that Apple does not support the full H.264 or MPEG4 standards. They've been very slow on implementing advanced features like B-frames. Not entirely up to date on this, so I don't know exactly what all is currently missing from QuickTime's H.264 implementation. So you can encode video with standards-compliant encoders like x264 and wind up with a non-QT-compatible stream. If you don't use the advanced options, though, QT should play it fine.
How to convert MKV to MP4?
WinX HD Video Converter Deluxe is one of the Best MKV to MP4 Converter. It fully supports Multi-core CPU (i3, i5, i7), and armed with Hyper Threading Technology (Converting MKV to MP4 by multi threads at the same time, speed up the conversion timely). That is why WinX MKV to MP4 converter program can be the fastest solution in the current market.
Other Source Related MKV
Convert M2TS to MKV: convert BDAV M2TS, AVCHD M2TS to MKV keeping best quality
Convert MKV to MP4: make MKV video most friendly on your Windows/Mac OS computer
Convert MKV to iPad: Play and watch HD MKV movie with iPad 1024x768 LED display
Convert MKV to iPhone: enjoy 1080p MKV film on iPhone 4 960-by-640 Retina display
Related External Source
: Matroska MKV: MKV Video Knowledge from MKV Official Site