Good luck with your WD Green drive. I've had a couple of their 1.5 TB models. The reliability of them sucked. One had a SMART error come up after a month of use and it's replacement had piss poor performance. I never bothered to do a proper throughput test, but it got a 2.1 Windows 7 Experience score and froze up the PC for minutes at a time along with contributing to 30 minute boot times. I've since replaced it with a 2 TB Seagate Barracuda and so far things are working well again in my HTPC.

Stu