Short for compact disc database, CDDB is a database used to store audio CD track information. The CDDB is what allows many computer software programs to recognize a CD and list the CD artist, album, and track information. The CDDB was initially created by Ti Kan who later sold the project to Escient. In March 2001, the CDDB was officially renamed to Gracenote, and although it was initially free to access, this database now requires a license. This change prompted many programs to switch to freedb.