Western Digital DLG Diagnostics 1.1

Western Digital DLG Diagnostics description

The Diagnostics utility allows you to test the drive, print results for last drive tested, repair errors found during the Test Drive option and write zeros to the drive.

Has anyone used this before? And if so, what do you think about it?

http://www.softpedia.com/get/System/Hard-D...agnostics.shtml