I'd try burning from within iTunes itself too, its a full function program that will copy tracks from the CDs you put into it, store them, sort them as you like, have all the info you want about the track, and let you create playlists to burn to CD - and you can burn to disk right from within the program.
it will do the entire library and playlists if you choose that option,
can select to only backup iTunes store purchases,
and can do incremental backup only - only those added since the last backup.
Now where'd I get it?
How to back up your media in iTunes they DO know how to do support right