So today I go a 640GB Western Digital MyBook External Hard drive. Turns out it's only 595GB's! I mean I can understand 11GB's because that's about the amount I lost on my 160GB WD Passport external HD that ended up being 149GB's. Damn disk format. I'm a little concerned that if I would have gotten the 1TB or 1.5TB that I would have ended up being gipped something like 200GB (1TB) or even 350GB (1.5TB).