I was more thinking of ripping your CD collection... (assuming you had one, could be bothered to rip it, and didn't rebuy everything as mp3s). I still actually buy my music on CDs and illegally rip to mp3 simply for the convenience of knowing where the back up is (it's on the CD rack in the hall). Mind you, that's not an issue with mp3 format as it would be just as illegal to rip to .ogg or .flac.

May be time to rethink though as an entire bookshelf of CDs is bloody huge as a backup system.