WiiMC (Wii Media Centre) is an open source media player for the Nintendo Wii written mainly by Tantric and rodies.

WiiMC Wii Channel
Watch this video on YouTube.

Changes:

Synced to MPlayer r33036
Fixed Inactivity Shutdown feature
Fixed plain playlist support
Added support for encrypted DVDs for USB DVD drives (thanks clava!)
Fixed network initialization for some USB LAN adapters
Other minor changes

http://wiibrew.org/wiki/WiiMC