GeeXboX is a standalone media player Linux
distribution, similar to MoviX. It's a small
bootable CD that allows you to play your favorite
video (DivX, XviD, H.264, MPEG 1/2, VCD, DVD,
OggMedia, Windows Media, RealMedia, etc.) and
audio (MP3, Audio CD, Ogg Vorbis, FLAC, MPC, etc.) files. It
also supports networking, and is able to play media
from Windows/Samba share, NFS, UPnP A/V Media Servers, RTP/RTSP servers, or SHOUTcast. It supports TV-out, TV tuners, DVB cards, and WiFi cards. It is based on MPlayer, and can be used on any x86, x86_64, or PowerPC computer. It's easy to modify the source to build your own GeeXboX or use an alternative
boot method.