MKVToolnix is a set of tools to create, alter and inspect Matroska files under Windows.

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.

Changes in MKVToolnix 2.2.0 :

• mkvmerge
- new feature: Added support for handling AC3 in WAV in ACM mode.
- new feature: Added support for reading AC3 from QuickTime/MP4 files. Fix for bug 254.
- new feature: Added support for handling AC3 in WAV in IEC 61937 compatible streams (aka SPDIF mode).
- new feature: Added support for WAV files with multiple data chunks.
- bug fix: Fixed a cause for the error message "no data chunk found" by fixing the skipping of 'fmt ' chunks.
- new feature: Added support for AAC-in-AVI with CodecID 0x706d as created by mencoder. Fix for bug 266.
- bug fix: Rewrote the OGM reader code. Another part of a fix for bug 267.
- bug fix: Rewrote the timecode application code. Additionally force the "previous cluster timecodes" that libmatroska uses to the current timecode. This seems to get rid of libmatroska's assertions about the local timecode being to small/big to fit into an int16. It also seems to get rid of some of mkvmerge's errors about the packet queue not being empty, and it fixes a couple of crashes with file splitting.
- bug fix: OGM files with non-Theora video tracks caused mkvmerge to fail since 2.1.0, or the resulting file was unplayable. Fix for bug 267.
- bug fix: Accept other Theora header versions than 3.2.0 as long as the major version is 3 and the minor 2. Fix for bug 262.
- bug fix: MPEG PS reader: Fixed the resyncing mechanism during normal reads. Another fix for bug 259.
- bug fix: MPEG PS reader: mkvmerge tries to resync to the next MPEG start code in case of error during stream detection. Fix for bug 259.
- SVQ1 video tracks read from QuickTime files are output as V_MS/VFW/FOURCC tracks and not as V_QUICKTIME tracks. Fix for bug 257.
- enhancement: SRT files that contain coordinates in the timecode line are supported. The coordinates are discarded automatically (as S_TEXT/SRT doesn't support them), and a warning is shown.
• avilib
- bug fix: Fixed a segmentation fault if reading the first part of an index failed but a second/other index part is present. Fix for bug 256.