Okay...bear with me for putting it in this section as there is no section that fits perfectly and this relates to selection for HDDs for a RAID system that will be Macs-only. So for my RAID 1 system I've recently (as in the past couple of years) used the WD RE4, which as you likely know is a 7200RPM 3.5 inch enterprise class HDD. I've used the 500 GB models for a while and while they still have a few years of expected service life, I have another issue. Recently large media files have made it so that two 500 GB HDDs (well really 1 given it is mirrored) is not enough, and so I was going to go for the 2 GB WD RE4s in a RAID 5 or RAID 6 setup...so I went to buy them and noticed that unlike the 500 GB RE4, the 1TB+ RE4s have only so/so reviews. Then I noticed that most of larger WDs have inferior ratings to the smaller ones. Where as the sub 1TB 'Black' lines and enterprise lines are all the rave, the 1 TB and even more so the 2 TB models aren't reviewed nearly as well. Is this just coincidence or does this have to do with more wear from increased platters? I don't mind spending more on enterprise grade level but I only want to if I get enterprise class data protection.