X-CD-Roast is a flexible frontend for optical disc authoring. It combines command line tools like "cdrecord", "cdda2wav", "readcd" and "mkisofs" into a nice GTK based graphical user interface.
Librarysync synchronises multiple media collections in different formats. It is primarily intended to synchronise a master lossless music collection (e.g. FLAC) with a lossy collection (e.g. MP3 or OGG) for use with iTunes or portable music players.