does anyone here have much experience with Matroska on OS X? there is a special build of Mplayer that will playback the files, but I dont want to be the guinea pig and spend hours upon hours creating menus and sub tracks and different languages just to test out the functionality of it.

I want to start using this format for encoding movies from now on, but I guess I am asking if i am maybe adopting too early?

Please advise.