I am looking for recommendations for an external drive for my iMac that would be 100% devoted to storing my 400 DVD's and then stream them to my TV via an Apple TV. I'd be ripping DVD's using Handbrake to this drive. All the DVD's are not HD. This drive would not be used for time machine. However, it would be ideal to have RAID or other mirroring/redundancy. I'm aware of the WD My Book II with 6TB (2 x 3TB), but have seen a lot of bad reviews on it and seems less than ideal for my needs. Any suggestions?