Always remember to take approximately 7% off a drives stated capacity to get the "real" capacity. Everybody who knows anything about computers knows that a kilobyte is 1024bytes, a megabyte is 1024x1024 = 1048576 bytes and a gigabyte is 1048576 x 1024 = 10737441824 bytes. That is everyone but hard drive manufactures. The claim 1kb = 1000 bytes, 1mb= 1 million bytes, and 1 gb = 1 billion bytes, thats ********, What this means is the formatted capacity of your drives is at least 7% less then advertised and usually higher, because disk file system need overhead to operate. Make sense now?