I have a 100gb Hitachi TravelStar USB drive that was orginally formatted NTFS, and used it on an XP PC with no problems. When I moved to the Intel MacBook Pro, I experienced the well-known read-only syndrome. Since I only care about using it on the Mac, I tried to reformat it to Mac OS Extended (Journaled), but Disk Utility wouldn't do it. Back on the PC, I tried reformatting the entire disk to FAT32, but XP would only allow NTFS. So then (again on the PC) I repartitioned the drive into a 75/25 split, and I it would let me format the smaller partition as FAT32, but not the larger one. Since what I really want to do is store movies for my IPOD Video on this drive, I want to have files larger than 4 gig. Does anyone know of a utility that will format this drive for the MacBook Pro?