I recently purchased "the latest" circa 2007 InstantCake upgrade package for my Tivo Series 3 from DVRupgrade.com. I read (going in) that a) there was NO PRODUCT SUPPORT of any kind available and b) NO REFUNDS. OK says I, but last time I tried it, it worked fine so likely with my computer experience, I can make it work. OOPS!!! That did not turn out to be so. The program was designed for OLDER PCs where there were a) PATA drive ports and b) (apparently) just two SATA ports. None of my four PCs now meet that criteria. I tried it on three computers, two with multiple (6 and 8) SATA ports and on a 2009 HP laptop using a USB to SATA adapter. In none of these configurations could InstantCake identify and connect to the DESTINATION SATA port (or USB port) so as to be able to write the InstantCake Tivo package to the destination 1TB drive. It was true! ABSOLUTELY ZERO support was available from DVRupgrade and no refund was available either! Let the buyer be AWARE! Finally, in despairation, I went to this and other Tivo forums and found the program KNOPPIX at http://www.bumwine.com/tivo.html and it worked beautifully. I did not need the InstantCake image, but just used the original Tivo Image from the original OEM drive from Tivo. http://www.bumwine.com/tivo.html speaks of http://www.mfslive.org/winmfs/ which is supposedly even easier to use, but I did not try that one out. I tried to publish this information on the DVRupgrade.com website, but they would not allow these comments on their website. I can understand why. It seems to me that DVRupgrade.com needs to have their InstantCake program updated to work with modern computers OR quit selling it.