Zzzbla's CD Catalog creates a catalog of your audio and data CDs by scanning your CD files and folders or using Gracenote's CDDB service. You can then browse your CDs and search for files, folders and audio tracks without inserting any CD to your computer.

After finding the desired item, you can run/play/view it directly through Zzzbla's CD Catalog which tells you which CD to insert.

You can also mark CDs as being in other "Locations" when you give away CDs. Moreover, you can exchange catalog databases with friends and browse their CD collection.