I want to back-up just the Tivo set-up files. I don't need to back-up any shows on there now. I have a 1TB drive in my Premiere now, but I only have smaller drives that can be used as a back-up. Would using DVRBars' truncated back-up allow that? Would I need MFTools for any reason? The backup drives I have are not empty, though I don't need to save anything on there. Thanks.