english deutsch
freedb
Audio CD database using GPL software.
Gracenote
The CD Data Base (formely CDDB). Enabled CD players can query for playlists.
Music Brainz
Project intended to be an OpenSource replacement for the existing system of looking up audio CDs on the Internet.
Poqqo
A CD data server.
The Free Track'Info'Xchange'
Free data provider for the Deluxe CD Player that comes with Windows 2000.