The problem with drive size, as reported by manufacturers today, is that a gigabyte is actually reported in binary not metric value. We assume that 1 megabyte = 1,000 bytes which is not true. The Gigabyte, in binary, is actually 2 to the 30th power or 1073741824 bytes. So, 40 gig metric divided by 1,073,741,824 = 37 gigs (approximate). Yours is reporting 33?????? please open My Computer and right click on that hard drive and tell me what is reported in the properties on that hard drive????