16
C.A.R. 4000 (English)
Automatic recognition of an audio-CD.
Do we know each other? Magic!
You may have been surprised to see that the C.A.R. 4000
displays the musician, the album and the track names immediately after you have inserted
the CD. This does not mean that the information was read from the CD, as is done with detec-
tion via CD-Text
®
or similar processes. In contrast, the C.A.R. 4000 uses a technology devel-
oped by gracenote
®
: a special process uses data such as the number of tracks, their length
and sequence to generate a number. Then this number is used to check more than half a mil-
lion CD entries in a CDDB
®
database. The entries in this database include information such as
the names of the artists, the album and the tracks. CDDB
®
—as you have certainly guessed—
stands for Compact Disc Database. You will be pleased to learn that the internal hard disk of
the C.A.R. 4000 contains a copy of this database. This method of recognition has the advan-
tage that even older CDs, which did not include such information on the CD itself because of
the state of the art at the time, can be identified. Of course, CDs that are yet to be released are
not included in the database, so we have made it possible for you to update it. See page 59 in
“Updating the CDDB
®
database.” for how to do this.
see also
http://www.gracenote.com/
Sometimes a CD may not be recognized in spite of the comprehensive database, even after it
has been updated. In this case you can also enter the relevant information into the database
manually (see “The Track Info.” on page 27).
