CD-R Verifier is a utility for verifying the contents of CD and DVD discs., user-friendly verification tool comparing the contents of a CD or DVD with the master offering: Yes, 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.
1. High speed verification
2. Single Drive ability
3. Printed reports for QA.

Checks totally 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.

Features:
1. Calculates a 32-character signature for the disc
2. Signature represents a mathematical calculation of every byte on the disc, including: * Volume label * Directory structure * File contents
3. Signature can then be saved or compared against other signatures
4. Changing any single byte on the disc, anywhere, will result in a different signature
5. Signature mismatches are visually and audibly indicated

Limitations:
* Limited to examining only the first 256 blocks of a disc

The license of this software is Free Trial Software, the price is $29.95, you can free download and get a free trial.