Whist looking for utilities to manipulate the evasive Matroska format; I stumbled upon Mortiz Bunkus’ MKVToolNix tools.

I was suprised to see that no one had yet made a MacOS X port; and after a bit of a discussion with Mortiz; I guess I’m the official MacOS X port guy. Neat, huh?

You can snag it from my software page.