VideoLAN

A quality and reliable name, the VideoLAN streaming solution is a great open-source option. "VLC media player is a cross-platform media player and server. It works under Linux, Windows, Mac OS X, BeOS, *BSD, Solaris, Familiar Linux and QNX. ... [The media player] can be used as a server to stream MPEG-1, MPEG-2 and MPEG-4 / DivX files, DVDs and live videos on the network in unicast or multicast; or used as a client to receive, decode and display MPEG streams under multiple operating systems." The VLS Server "can stream MPEG-1, MPEG-2 and MPEG-4 files, DVDs, digital satellite channels, digital terrestial television channels and live videos on the network in unicast or multicast."