on the hd its self it says 160 gb and when i load my pc the mass storge card it says on there WD ultra hard drive found 149 gb when it dose the hd and cd rom checks is were i see this which i belive it would be 149 cause like my 80 gig hd i only get to use 76 gigs it keeps a few gigs extra for something u dont think i would have to reformatt it to show all the gigs if i use windows formatt it only lets it formatt to 127 and only in nstc formatt so i dont know what to do i guess im stuck with a 127 gig