This is the official torrent for MPlayer 1.0pre8. MPlayer is the movie player for any operating system of any hardware capability. It has support for:
Physical media: CDs, DVDs, Video CDs
Container formats: 3gp, AVI, ASF, FLV, Matroska, MOV, MP4, NUT, Ogg, OGM, RealMedia
Video codecs: 3ivx, Cinepak, DivX, DV, H.263, H.264/MPEG-4 AVC, HuffYUV, Indeo, MJPEG, MPEG-1, MPEG-2, MPEG-4, RealVideo, Sorenson, Theora, WMV, XviD
Audio codecs: AAC, AC3, ALAC, AMR, FLAC, MP3, RealAudio, Shorten, Speex, Vorbis, WMA
MPlayer can also use Windows DLL codecs on any x86 platform (yes, including Intel Mac OS X and Linux x86) for decoding newer formats that haven't been reverse-engineered fully yet.