I bought the Seagate 1TB Barracuda because it was a few dollars cheaper than WD 1TB Caviar Blue. But I couldn't get Windows 7 to recognize the drive, and even if it did, upon reboot the drive would "disappear" from BIOS detection. I use Acronis True Image for backup and cloning, and the same thing happened. I had a hard time recognizing the Seagate 1TB, and even when it was detected, Acronis restoring would hang and then report "drive missing" or something similar. I went out to buy a WD 1TB Caviar Blue instead and never had problem for months now.
I returned the Seagate drive for RMA, complaining that it has intermittent detection with BIOS. Got my replacement drive, and the problem still exists. It could be my motherboard or BIOS, but then the Western Digital drive didn't show any problems. I put up my Seagate 1TB for cheap sale on second-hand bargain websites and nobody wants it.