I’m returning two drives that I received today. The vendor had no issues with handling my RMA. I received two Caviar Black 1TB drives. Inside the boxes they were Caviar Blue drives of a different model number. What was interesting to me is that the vendor packaging got the serial numbers correct. Do you think WD just decided to make the older Black drives the new Blue drives and put them in leftover Black boxes? I’ll be replacing them with the newer Black model that has 64MB cache.