For those that upgraded their Roamio with a Western Digital Red 2 or 3TB HD, how noisy is your drive? Last year I replaced my iMac's native drive with a 1TB WD Black and regretted it ever since. I originally bought the WD Green but read green wasn't suitable for every day use and was more for backup drives, etc. The black is a nonstop noise machine that makes an incessant and very loud crunching sound. Moreover, it's very slow for a drive that's supposed to be top of the line. Right now WD Reds seem to be on sale and I'm thinking of pulling the trigger, but I don't want to save a few bucks if that means a terribly noisy drive or having performance issues.