Cdlabelgen was designed to simplify the process of generating labels for CDs and DVDs. It originated as a program to allow auto generation of front cards and tray cards for CDs burned via an automated mechanism (specifically for archiving data), but has now become popular for labelling CD compilations of mp3's, and copies of CDs. Note that cdlabelgen does not actually print anything--it just spits out postscript, which you can then do with as you please.