I'm about to upgrade my series 2 tivo again. The first time I added a 60gb B drive to go to a total of 120gb. This was when the tivo was running the 4.x software and I made a backup with MFS tools. This time around I'm going to swap out the 2 60gb drives for a single 250gb. Just as a test I restored the backup to the 250gb drive but it only showed 162 hours of recording time. Is it possible to just make a MFS backup of the currently running 2x60gb tivo with the 7.2.x software and restore it to the 250gb drive and still have partitions left to expand the additional space to? If not, is there any way to use the full capacity of the 250gb drive with the original backup?