MPlayer is a movie and animation player for Linux based on libmpeg2 (mpeg2dec), and the Avifile library. It uses mpeg2dec/libmpeg2 for MPEG decoding. The supported file formats are MPEG 1/2 (MPG, DAT, BIN, VOB), and AVI/ASF/WMF(Mpeg/PCM/AC3/DivX/MS-ADPCM/aLaw audio, and MPEG4/DivX/Indeo/CVID/WMF video codecs, and many more). It supports hardware YUV colorspace conversion, and scaling via mga_vid/syncfb devices, or the X11 Xv extension.

Version 0.91 is shipping as of August, 2003.

http://www.mplayerhq.hu/homepage/