.mkv files
 

Okay, first of all, can BSPlayer even PLAY .mkv files? I thought it did, but it comes up with an error when I try to open it. It says either "Float division by 0." or "Can't create direct draw surface." Can I, and how do I fix this, please?

Thanks in advance.

mkv's work fine here, but you need the Matroska filters: http://packs.matroska.org/