WiiMC (Wii Media Centre) is an open source media player for the Nintendo Wii. The GUI is powered by libwiigui.
Features
Attractive libwiigui-based interface, designed with the Wii in mind
Picture viewer
Music player
On-line media support, including SHOUTcast, YouTube, and Navi-X
FAT32/NTFS from SD and USB 2.0 (FAT32 recommended)
Network playback via SMB, HTTP, and FTP
1.2.2 - January 14, 2012
Fixed YouTube search
1.2.1 - January 14, 2012
Synced to MPlayer r34540 and ffmpeg a9bd29e15e8d
Fixed HTTP bugs that made YouTube unstable
Added thumbnails for YouTube
Improved video resizing granularity (thanks eric!)
Translation updates
Other minor bug fixes