.CIDB File Extension
What is a CIDB file?
Contains information about CDs that have been loaded using iTunes; includes album and track names downloaded from the CDDB (Compact Disc Database) as well as CD and track name for CDs that are burned by the user; named "CD Info.cidb" by default.
The "CD Info.cidb" file is located in Mac OS X in the
In Windows XP, it is located in the "\Documents and Settings\username\Application Data\Apple Computer\iTunes" directory.
In Windows Vista, it is stored in the "/Users/username/AppData/Roaming/Apple Computer/iTunes" folder.