MKVtoolnix is a set of tools to create, alter, and inspect Matroska files under OS X, Linux and other Unices, and Windows. They do for Matroska what the OGMtools do for the OGM format and then some.
Since May 1st 2003, the Matroska libraries themselves and my Matroska tools are officially released as a first public beta version. Although all of them are still under heavy development, I urge you to download the software, test it and report any errors you encounter to me. I'm always grateful for good bug reports because I miss so many mistakes and you guys normally find them. Your feedback is important to me :)
Note: If you have problems with the new GUI, download version 8.2.0 with the old GUI from Related Links.
MKVToolNix GUI: chapter editor bug fix: whenever the additional modification of »expanding start/end timecodes to include the minimum/maximum timecodes of their children« was run on an edition entry then ChapterTimeStart and sometimes ChapterTimeEnd nodes were inserted as direct children of the EditionEntry node when saving. This resulted in invalid chapters.
MKVToolNix GUI: new merge tool feature: when dragging-and-dropping files onto merge settings already containing a file the user can set more options to be always done instead of asking (before: only adding files to the current merge settings could be thus marked; now: adding to current, adding to new settings and adding each file to new settings can be set to perform without asking). Implements #1388.
MKVToolNix GUI: merge tool enhancement: when dragging-and-dropping files onto merge settings already containing a file the dialog asking the user what to do has received a new option for creating one new merge tab for each of the dropped files. Implements #1380.
mkvmerge: bug fix: the pixel dimensions reported for VC-1 in MPEG transport streams in verbose identification mode was 0x0.