MPlayer is a multimedia player and encoder suite which runs on many
platforms. It plays a terrific number of different file formats
and codecs including popular DivX, XviD, H.264 streams as well as
DVD and SVCDs along with many popular audio codecs.
On the i386 platform it also supports some Windows DLL codec
families which allow playing of e.g. QuickTime movies.

WWW: http://www.mplayerhq.hu/