I searched the forums to find similar posts and was unsuccessful. Sorry if this is a topic that has been discussed before. I got my PB about 2-3 weeks ago. Now, I've had many a harddrive in the past, however, none have made me feel this ripped off. On my 80gig external, I have about 74 usable gigs. On my old computer, which was a 60gb hd, I had about 54 usable gigs. However, on this computer, which is a 100gb hd, I had only 85 usable gigs?? I understand that I would lose some gbs due to the whole byte math problem, but this is ridiculous, imo. I would expect 90 at least. Anyone else have any thoughts on this? Such as, if you have a 100gigger in your computer, what amount of that was available when you turned on your comp for the first time? I.e. is this common and is this something I really should feel ripped off over?