MKVtoolnix

MKVtoolnix 5.0

Free
There are options for subtitles, audio, splitting the video file and options
4.1  (94 votes)
6.6
12.0.0 (See all)

MKVToolNix is a set of tools to create, alter and inspect Matroska files under Linux, other Unices and Windows. They do for Matroska what the OGMtools do for the OGM format and then some.
There are options for subtitles, audio, splitting the video file and also format-specific options. In short, MKVtoolnix has a lot to offer in terms of functionality, but one has to know about video files to really appreciate what this application can do.

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