Don't both with WD, their drives have been going down the drain when it comes to quality. A few years ago they were the best for what most could or knew to afford. However they have pretty much pissed that into the wind. I've gone over to Hitachi, they are surprisingly fast for the cost and haven't given me any problems. They run cool and silent. I got 5 of them, two 1TB and three 2TB that I bought before the prices gone to the Moon, mars, and the stars beyond.