MKVToolnix is a set of tools that will help you 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.

With these tools one can get information about (mkvinfo) Matroska files, extract tracks/data from (mkvextract) Matroska files and create (mkvmerge) Matroska files from other media files.

Matroska is a new multimedia file format aiming to become THE new container format for the future. You can find more information about it and its underlying technology, the Extensible Binary Meta Language (EBML), at http://www.matroska.org/

What´s New in version 5.2.0:

• mkvmerge, mmg: bug fix: Automatic MIME type recognition for TrueType fonts will result in 'application/x-truetype-font' again instead of 'application/x-font-ttf'. Fix for bug 682.
• documentation: enhancement: Added a Ukrainian translation for mkvextract's man page.
• mkvinfo: bug fix: Various elements used to have a space between their names and their value's hex dump. In v5.1.0 that space was accidentally removed. It has been added again. Fix for bug 583.
• mkvmerge: bug fix: Turn off input file buffering for badly interleaved MP4 files.
• mkvmerge: bug fix: Changed how mkvmerge assigns IDs to tracks in source files for Matroska and MP4 files. That way files whose headers contain the same ID for multiple tracks will work correctly. Fix for bug 681.
• mkvmerge: enhancement: The VP8 output module will always re-derive frame types (key frame vs. non-key frame).
• mkvmerge: bug fix: VP8 read from AVI could not be put into WebM compatible files.
• mkvmerge: bug fix: Fixed a rare audio type mis-detection of MP2/MP3 audio tracks in MPEG program streams causing mkvmerge to abort with an error message.
• mkvmerge, mkvextract: enhancement: Implemented input file buffering in mkvmerge and improved/implemented output file buffering in other tools.
• mmg, mkvinfo's GUI: enhancement: Added new icons
• mmg: bug fix: Fixed a memory leak in mmg's header editor that caused the 'open file' function to stop working after opening a few files. Fix for bug 679.