Audex

Audex is a new audio grabber tool for CD-ROM drives based on the application development framework Qt 4 (4.3.x). Archival functions of the extended database mode are in the focus by now.
Several people can use Audex to extract their audio CDs and sync metadata with a single SQL database. Every time someone wants to extract an audio CD that still exists in the database Audex will deny extracting. In normal mode Audex behaves just like every CDDA extractor.

And it supports Firebird:
– Synchronisation of metadata and even covers with MySQL/PostgreSQL/Firebird-Databases (e.g. explore it with a PHP-webinterface).