saltal3220 posted...So I have a 60 gig fat model and I went to best buy to get a new hdd. After installing and formatting a 250gb hdd it only had 205/232 gigs of free space. I know you never get the full amount that it says on the box but where did that other 27 gigs go? It should have said 232/232 as far as I know. Is this normal?

It's because bytes don't work on a based 10 scale, they work on a base 2 scale.

1 kilobyte = actaully 2 ^ 10 bytes, = 1024 bytes.

1 megabyte = 1024 kilobytes

1 gigabite = 1024 megabyes.

1 Gigabye = 1024 (megbyes) * 1024 (kilobyes) * 1024 (bytes). Therefore a gig is actually 1,073,741,824 byes.

Therefore when something is advertised as 1 gig, is is

*actually* 1,000,000,000 / 1,073,741,824 = 0.931 gigs.

So, in your case your advertisement of 250 gigs is actually (250 * 0.931) = 232 gigs, as you've quoted above.

I know it doesn't make a lot of sense, but that's how it works. When you buy a drive of 'x' gigs, you need to multiply 'x' by 0.931 to get the real, base 10 size.

---

Check out my investigation into 7th generation exclusives here:

http://rustygamer.wordpress.com/