alright, thanks everyone, I get it now, wont be a problem for me though, because I'm going to be getting a 250gig when I'm building my new computer, I'm ordering the parts tomorrow, because I'm only $3 off, but I'm sure my dad can spare the diff., but a person is interested in buying a game that I'm selling so I might have about $15 left over, I'm going to add the "160" to the "250" to make 381.84 GB according to Bobo's accurate sounding math.