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FreeDB compact disc database
FreeDB is online database of compact disc track listings. It was originally based on the now-commercial CDDB (compact disc database). FreeDB holds more than 2,000,000 audio compact disks.
FreeDB is designed for developers of audio and music software. Common users may use the online search on the FreeDB website.
To find disc information over the Internet, a client software calculates unique disc id and then queries the database. If the disc is in the FreeDB database, the client will able to retrieve and display the artist, album title, tracks list and other information. This information can be used inside audio files (tags) or different cataloging utilities.