music CD identification

(redirected from CD albums)

music CD identification

Searching a music database for the missing album information in a music CD disc. Old, as well as many new, music CDs do not contain artist name, album and song titles, but MP3, AAC and other compressed audio formats include fields called "tags" for this data (see ID3 tag). When a CD is played in the computer or is being ripped to a compressed format, the media player software queries an online database such as CDDB (, freedb ( or MusicBrainz ( to retrieve this information.

Why Identify the Disc?
When a song is played, the actual title can be displayed instead of track 01, track 02, etc. If the CD is being ripped, the titles are automatically entered into the meta-data fields of the MP3 or other compressed format. Without this service, users have to enter the titles manually for every track in the album. However, for MP3 collections that were never tagged or improperly tagged when the CDs were ripped, there are music databases and tagger programs that add the correct meta-data (see music file identification).

Only Track Number and Time
When they designed the CD in the early 1980s, they did not set aside a few thousand bytes for descriptive data among the 650 million available. An appalling lack of vision in retrospect, meta-data fields were added many years later (see CD Text), but are not mandatory and not always used.

The only meta-data guaranteed to be in a music CD are a table of contents (TOC) with track numbers and lengths, precisely what has been displayed on a consumer CD player since day one. Although not impossible, it is unusual to have two CDs with the same number of tracks and lengths in the same order, and it is this table of contents data that identifies a music CD. See CDDB, freedb, ripping and music search.
References in periodicals archive ?
JANIS IAN: BETWEEN THE LINES (SONY) The second of five remastered and rereleased CD albums from the superb Janis Ian.
With flaws production values, each and every one of these CD albums is a masterpiece and very highly recommended for personal, community, and academic library American Jazz collections.
KATRINA LAWSON, OLD COLWYN: I think CD albums still have a future as I believe people still like a CD to look at the cover etc and give for gifts.
From May 1 to 31, shoppers will be able to drop off their unwanted CD albums and DVDs at specially created Entertainment Exchanges in their local Homebase store.
Almost all CD albums, DVDs and console games are accepted, as well as most textbooks.
Prize: each 5x CD albums from the Prince back catalogue as described.
Prize: each five CD albums from the Prince back catalogue as described.
Recess Monkey is a successful and independent recording group that has been entertaining children in both live concert performances and through the release of their popular CD albums. "Tabby Road" is the newest of these and another certain hit for preschool kids through early elementary school students.
But it added CDs would continue to be represented in the basket, with consumers still spending on CD albums.
CD albums incorporating new anti-piracy technology, released by labels including Sony BMG and EMI, are reported to be selling well despite their incompatibility with iPods.
The UK CD albums market outperformed its international counterparts in 2004 with a growth rate of 4.5%.
Already a top-three UK music retailer, through CD albums sold in its stores, Tesco is the first major supermarket to attempt to capture a piece of the pounds 25m legal download market.