I've been trying and trying to find some info on playing .rmvb files in mplayer on a Mac.
The best "answers" I've seen say that it should be possible but nobody seems to know how to do it.
Can anyone give a straightforward answer as to how to do this?  I don't like real player because it's somewhat sluggish  but when I open an .rmvb in mplayer, all I get is audio.  No video.

Thanks