I'm a NYC area Cablevision subscriber. I have a 2 yr old SA 8300HD DVR with it's default 160GB drive.
I just attached a 500GB external drive - Beyond Micro BM500MD3CS16M 500GB 7200 RPM 16MB Cache USB 2.0 / eSATA External Hard Drive (http://www.newegg.com/product/produc...82E16822709031
I unplugged the 8300HD, attached the drive with it's included cables, booted the external drive, plugged the 8300HD back in, when it came back onscreen it asked if I wanted to format the external drive, I selected yes, waited about 5 minutes, left the external drive powered on , rebooted the 8300HD without unplugging it, and when the 8300HD was back on, it showed my hard drive usage had dropped from 55% to 12% without any of my programs erased. My scheduled recording list is intact; the unit has just recorded 2 shows tonite without any problems. So far so good.
6 days later...still not seeing any problems after a week of many recorded and watched shows
Sorry, but I didn't attach the external drive to my PC first, so I don't what drive is in this enclosure.
A few Newegg reviewers reported theirs held a Hitachi drive.