My Seagate ST3320620AS 320gig hard drive less than two months old began experiencing problems when I was watching a DVD that had scratches on it. The movie froze several times, forcing me to reboot the computer via the power switch.
Afterwards chkdsk reported disk errors. After removing the DVD I continued to have errors when rebooting the computer, so I ran HD Tune 2.55. It reported bad blocks and the computer locked up again. When I tried rebooting the system failed to boot.
I finally restored a backup I retested the drive using SEA tools and HD Tune. Both passed. I have rerun HD Tune several times with no errors.
I have not formated it yet, I'm using a new hard drive. I was going to RMA the drive, but since SEA tools finds nothing wrong with it I'm not sure I can do that. Perhaps I should tell them it failed and send it back anyway.
I have not had a hard drive fail and recover like this one has. I'm testing the heck out of it.
Oh, before it failed it often would make a loud single clack every now and then. I have not heard any noise from it since. That was a sound that means death to me, but the drive passed HD Tune even though it clacked. Now the clacking is gone, but the drive is not my main drive anymore.
hardware
prices 
Free Scan: Update Your PC's Outdated Drivers to Optimize Performance 
