Playing .mkv files

/comp/,

I recently aquired some porn vids in .mkv format. I obviously downloaded the latest Matroska Pack and attempted to play the file. However when I tried I got an error with WMP. It won't play on Winamp and for some reason I get only audio with VLC Player.

Help and suggestions please!

Regards,
Anonymous

What kind of porn has dual audio or subs? I just find it useless to use mkv when avi is good enough. Same thing anyway...