I just upgraded my soft-modded xbox's hard drive to a 320 GB one. I use xboxhdm to format and copy over the files and then locked it with the eeprom from the old hard drive. It put all of the extra space, about 312 gigs, in the F drive. I'm worried, however, because I keep hearing about how something needs to be special in order to access large hard drives, although the number changes from 137 to 120 to 250 GB. When I boot up, it says it can see all the space, but I'm worried I'm going to fill it up to 120 gigs and it'll say i'm out of space and I'll have to reformat and lose everything if I want to access the space. So, is it really working and if not how do I make sure it is?