Great stuff Rob. I've copied your updated instructions for future reference. So all this crap has been caused because of using "128" instead of "127". Glad to see my Hinsdale's directions are already updated and free of that problem. I feel a lot better about using Tiger's MFS Tools 2.0 to do this now. Unfirtunately my 120 Gig hard drive still hasn't arrived. I may have to put this off until next weekend. Here's a new question. If I simply move the image of my A drive to the new larger drive + expand it and keep the original A out of the unit for a while until I'm sure everything's "kosher"......... Will I lose more usable space when I eventually add the original 40 gig A drive (now B) to the new 120 A ? And does the addition of the original A count as another "upgrade" essentially putting my overall TiVo setup at 2 upgrades with possibly one more possible upgrade left? I guess what I'm getting at is, am I better off putting in 2 new hard drives all at once NOW rather than one now and one in another month or so?