I am stuck trying to upgrade, hope the TiVo experts here can help. I got a WD30EURX and am trying to put it in a 750500. I have been able to transfer the image off using DVRBars (Thank you ggieseke) and put it on the WD30EURX. I can put it in the TiVo and it works. My problem comes when trying to expand and supersize it. JMFS won't recognize the drive when I boot it. It will recognize all the other drives I connect. I don't have a desktop so I'm using a SATA to USB adapter. Also, I have a clean image of the 750500 that has never been plugged in. If it is needed I just need to know where to send it. I would appreciate it if someone could share an image of a 74632. I hosed it up and had the wrong hard drive connected and mounted it in disk manager. I have no need to try and save the recordings at all. Any help from the TiVo gurus out there would be appreciated.