We were running low on hard drive space, so using the included Tivo transfer app that came with Toast Titanium 11 I was able to copy the shows from our Premier Tivo to my iMac. Then I deleted the shows on the Tivo to free up the space. We are now ready to watch the shows, and I thought it would be pretty simple to copy the files back to the Tivo using the MactoTivo app that came with Toast 11, but that appears to not be the case. I've found numerous articles talking about unlocking a feature in the Tivo to Desktop program for Mac that would allow you to transfer Mpeg-2 files over to your Tivo. But I wasn't sure if that would work with the encrypted .tivo files (I know that is just a Tivo protected container for mpeg-2 files). Has anyone had any experience in copying original untouched .tivo files back to a Tivo using a Mac?