"MPlayer is a movie and animation player that supports a wide
range of codecs and file formats, including MPEG 1/2/4,DivX 3/4/5,
Windows Media 7/8/9, RealAudio/Video up to 9, Quicktime 5/6, and
Vivo 1/2. It has many MX/SSE(2)/3Dnow(Ex) optimized native audio
and video codecs, but allows using XAnim's and RealPlayer's binary
codec plugins, and Win32 codec DLLs. It has basic VCD/DVD playback
functionality, including DVD subtitles, but supports many
text-based subtitle formats too. For video output, nearly every
existing interface is supported. It's also able to convert any
supported files to raw/divx/mpeg4 AVI (pcm/mp3 audio), and even
video grabbing from V4L devices..."