.mkv?

I got a movie that is in the format .mkv... What do I need to play that?

I currently have:
- Nimo Codec Pack 9 Beta 1
- K-Lite Codec Pack 2.20

- - -
I have found out how to play this file, thanks!

What did u use to play the .mkv file?thanks :)

If you use the Full version of the K-Lite Codec Pack then you can use BSplayer to play .mkv files.

It is a matroska file btw. It's a container like avi and it can contain different formats of audio/video.

Or just use Media Player Classic.It includes a built-in version of MatroskaSplitter.