CD-R Verifier is a user-friendly verification utility that will compare the contents of any DVD or CD with the master offering. This product originally was designed for CDs and was released long before there were any DVDs. Same tool, now supports CDs, DVDs and even Blu-Ray discs.

Checks completely in less than five minutes per disc, reading the entire disc as fast as the drive can provide the data. This means a 40x drive will be used at 40x. Other techniques require a lengthy process, up to 10 times longer.

Here are some key features of "CD-R Verifier":

Calculates a 32-character signature for the disc - Signature represents a mathematical calculation of every byte on the disc, including:
· Volume label
· Directory structure
· File contents

· Signature can then be saved or compared against other signatures
· Changing any single byte on the disc, anywhere, will result in a different signature
· Signature mismatches are visually and audibly indicated
· Through Windows, the available CD and DVD devices are listed.
· Can be used from the command line or a batch file.
· Can also be used from programming languages such as Visual Basic.