Hey guys, I have an Scientific Atlanta 8300 HD PVR which currently has an internal 160GB IDE hard drive, and I've also connected a 500GB sata hard drive via the esata port on the back. I've been running this setup for a few years now without any problems at all, the 2 drives work great. What I'm trying to do is remove the 500GB hard drive, and replace it with another (different model) 500GB sata hard drive (testing purposes). I would like to clone the current 500gb drive as its almost full at the moment. The cloning of the drive would be of great knowledge for my own personal use, however for my specific needs, the cloning of the drive is not an absolute necessity... what I'm afraid of though is if I remove the currently full 500GB drive, install the new 500gb drive, I know the PVR will recognize it, and format it for use... however if I wanted to revert back to the ORIGINAL 500GB drive, would it ask to format that one too since the last drive was a different drive?