Hi all Longtime forum member, infrequent poster. Back in 2008 I replaced my Series 2 Tivo with a Tivo HD (TCD652160). I upgraded the hard drive with a 1TB Hitachi drive using WinMFS and the system has worked flawlessly until the last couple of days. Last Thursday I was watching recorded content when the playback started stuttering and the Tivo would not respond to commands. After a restart when I got the same behavior I realized that the hard drive was starting to go bad and as I had a Seagate 1TB hard drive on hand I opted to try copying the drive with all recorded shows using WinMFS. Copy process completed after about 36 hours and initially everything seemed well. I watched the program that was stuttering on the old drive and everything was fine. Later in the afternoon when I turned on the TV I saw that the Tivo was locked up. I tried doing a kickstart 57 to repair the file system but the system would reboot after about 15 seconds and it never completed the process. I decided to abandon the idea of keeping the shows and I used the Seagate Seatools utility to do a complete erasure of the drive and I used WinMFS to restore the drive backup made from the Hitachi drive. I fired up the Tivo and it booted and things looked promising although I was surprised to see the recordings listed on the "now playing" page as I know the WinMFS backup by default doesn't copy the recordings. I was thinking about perhaps doing a 'clear and delete' when the system suddenly rebooted and now it has the green screen which I guess means that the kickstart 57 is running again. I know back in 2008 there was a list of drives that were recommended and there were some that were known NOT to work in Tivos. I just checked the drive upgrade thread and doing a little cross referencing to Newegg the Seagate 1 TB drives listed are listed as "not available". The drive I was trying to use is a ST1000DL02. I wanted to run this by forum experts to opine whether I've just got an incompatible drive here or whether there are things left to try that I haven't thought of yet. Also is there an updated list of known good drives?