Hi. Proud owner of an S2 and S3 for years and years. Many moons ago, followed the Hinsdale instructions to upgrade my failed S2 drive with no problem. So when I began to suspect that my S3 was acting up (stuttering, slow to switch menus, random reboot), I knew it was probably time to replace that drive too. Luckily, the new instructions/software using WinMFS makes the entire production much, much easier. But I'm thinking that I didn't do something right. First, ran Kickstart 54 on the original drive - saw that it reported an Error 7. Yup, definitely a failing drive (confirmed this with TiVo support). Then I did the following: Booted up the original drive on the TiVo after doing SMART test. Seemed to run a bit better, but let's just be careful. Deleted all "Recently Deleted Files" and used TiVo Desktop to transfer a handful of still-to-be-watched programs to my PC just in case. Key point? The original drive is still funtioning at this point. Shaky, perhaps. But still working. Powered down TiVo. Obtained a WD Caviar Black 1TB drive (didn't go with the Hitachi Deskstar -- too many Google searches influenced this decision; didn't go with any of the WD "green" drives per the recommendations to avoid those for TiVo purposes) Using a WinXP SP3 machine - connected both drives via USB-to-SATA connectors and ran WinMFS. WinMFS did see both drives, one showing "250" (the original drive) and the other showing "1000". Did the backup portion (took just a few minutes), then the copy of settings/programs from the TiVo drive to the WD (took more than a few hours) MfsSuperSize Powered down the PC, and installed the WD drive into the S3. Didn't run any WD-specific adjustments, as I've seen on other sites. Didn't change any jumpers or other factory settings on the drive. Plugged TiVo back in, and watched the "Powering Up" screen for about 20+ minutes. All the front panel lights remained on, along with the TiVo logo on the display. Yeah, this probably isn't good. I have a few thoughts, but wanted to get expert opinions from y'all: * Is the WD drive just not recognized by the TiVo? Should I repeat the process with a different drive? * Did the backup fail to copy over the TiVo software? Do I re-run the WinMFS process, or try some other copy/upgrade method? My goal is to keep/transfer my shows and settings... but if I absolutely have to, I can survive with a blank install. Don't want to do that, but if it's the only feasible solution then I'll deal with it. So - what are your thoughts? Where did I go wrong?