The Hard drive in my TiVo HD recently tested as failing. I bought a new drive, and decided to try WinMFS for doing a backup and copy of the original drive. Well, the old drive was too far gone and would not copy. So, I looked for alternate solutions and decided to try (purchase) InstantCake, from DVRUpgrades. BIG $40 MISTAKE. I've built several computers, upgraded my old std. def. TiVo, swapped many a hard drive, even tinkered around in DOS Batch files. I gotta warn everyone, INSTANTCAKE is a bear to try to use. They don't tell you until you make the purchase and start the process...but you've got to be able to "identify" your drive(s) by terms such as hda, sta, etc. in order to be able to use the program. I found on their "support" (JOKE) forums, a post from them, telling how to use Page Up/Down, to scroll thru the Linux post messages to find which of the abbreviations the program assigns to the drives....I read every line....several times....I found one....hda...for the old drive, but the program would not "accept" that identifyer. I tried, over, and over, and over.....yeah, I know....it does not good to repeat a step that just failed... After about 9 hours of this process...(not all of it with InstantCake, I admit)...I told the wife that I had to admit defeat. I put the old drive back in the TiVo, set up the std. cable DVR on her main TV. THEN.......I had the bright idea to search here, for an "image". (I thought I had looked earlier, but was not signed in.....so, I signed in here, did a search...and found the file with recovery images.... (at myself, for being so dumb) I found a TiVo HD image (for FREE....)....started taking the TiVo apart (again)...and, within an hour, we were back in the living room, with a new 1TB hard drive in our TiVo, going through the Welcome Screen, and guided setup The only slight issue, was the next day we discovered we needed to do a "Clean & Restore"...and, we've been enjoying our "new" TiVo HD now, without incident, for almost a week! I post this to let others know that INSTANTCAKE, from DVRUpgrades is a VERY FRUITY program...It would not accept the identifier it listed for the hard drive....I might mention, I had disconnected ALL drives in my computer, except the old TiVo drive, and the target drive...and a CD...just like the InstantCake instructions said. I DO NOT RECOMMEND INSTANTCAKE ....use WinMFS and an image, which you can find here, for FREE. Don't repeat my mistake and hours of failure. Thanks to all the posters here....you saved my TiVo!