djoPlayer is a very simple, yet highly customizable, GUI for MPlayer. It allows you to play DivX 3, 4, 5, Xvid, Vob, real, H264, mpeg-1, mpeg-2, mpeg-4, asf, wmv, ac3, mov... files with the subtitles if any.

It was the first GUI that allowed you to enable the Post Processing for MPlayer (it blurs the usual squares that you see in DivX movies). The website is in French, but the application (made with AppleScript Studio) is in English too.

WHAT'S NEW
-Version 3.5.1:
-Updated to latest MPlayer binary (more optimization, bugfixes, more fullscreen modes)
-Automatically check for updates
-Some minor changes