WhatDisk is an easy-to-use program that helps you categorize your disks (CD's, DVD's, ZIP disks, external hard drives, USB sticks etc.) into a single, searchable database. Now you can find that file (or that MP3 song) you were looking for without going through all your disks. WhatDisk also catalogs the contents of zip files on your disks. Now you really know what's on your disks.

The license of this software is Free Trial Software, the price is $19.95, you can free download and get a free trial.