Summary: I bought one of these new in early 2009. A few weeks ago, just before Memorial Day, the drive died. The drive will not spin up and even keeps the computer from booting if it's plugged in (it was configured as the D: drive). After searching on the web, I found several posts of people who have had the exact same problem. Seems that the board mounted outside the drive gets too hot and self destructs.
Summary: This is probably the worst experience I have had with a PC component supplier in my 20 years building computers. Supposedly WD's flagship sku at the time of purchase last year, backed by a fancy 5 year warranty (which is terrible, read on) the 1TB Caviar Black died within a year of purchase despite light use (94% unused). I don't know about you but when one pays through the nose for a top end product, you expect it to last a little longer than this did.
Summary: I am just about to request a return label for my third drive in less than two months. The first began to get very noisy with heavy vibration after about 30 days. The second drive was extremely loud and upon heavy seek/write would have a metalic grinding sound. The third drive has the same issue. I can hear this drive over my fan and TV! I think I am done with WD for now.
Summary: Good: Amazon delivery was prompt. Drive arrives within a few day. Bad: The drive failed in just over 30 days. Lost all music and video files and some important family photos. Me not happy, Wife not happy. Advice: Please stay away from this item.