Review on WD 500GB AV-GP SATA 3 Gb/s Intellipower 8MB Cache Bulk/OEM AV Hard Drive - WD5000AVVS by Devon Dober

Cannot recommend this product. First of five installed and used as boot drive for Win7. In just a few days, the computer was working so hard that the slow drive had to be replaced. Checkdsk found bad sectors. An online discussion shows that green drives pose a reliability threat, probably due to the variable rotation speed: http://www.gamersnexus.net/guides/1741-wd-blue-vs-black-comparison-best-drive-for-gaming .