Mkvtoolnix is a http://www.aliyun.com/zixun/aggregation/18736.html "> which allows users to display information, extract data streams, and merge into several streams of data to split into a set of Matroska media files. Sources of video data stream types include AVI, OGG/OGM, RealVideo, MP4 files, MPEG program flows, and various basic streams (H264/AVC, MPEG1/2, VC1, Dirac). Support audio formats include: AAC, (E) AC3, DTS/DTS-HD, FLAC, MP2, MP3, RealAudio and Vorbis. It also supports a variety of subtitle formats, including: SRT, SSA, ass, vobsub, etc.
Mkvtoolnix 5.6.0 This version fixes a new important issue, "split part" functionality. Fixed other errors. The Polish translation program has been added as well as Spanish translations as a MMG guide.
Software Information: http://www.bunkus.org/videotools/mkvtoolnix/index.html
Download Address: http://www.bunkus.org/videotools/mkvtoolnix/downloads.html