I've used this for about 4 years.
Nicely written, self contained program. Performs drive throughput and access time tests with graphical results.
Also shows Drive temperature, UDMA mode, model number, firmware version, serial number, and more. Displays drive SMART data and can do fast or more detailed error scans to check for bad sectors.
It does not repair them, it shows you where they are on the drive and how many, if any. Use the new CHKDSK in window Vista to scan for and update the bad sectors list if needed.
This program has a simple and effective tabbed layout.
License: Free Trial ($34.95) Details...