max out space on memory stick - PSP3D.com - Sony PlayStation Portable News, Homebrew, Hacks, Reviews, Videos, Mods, Forums

gschept180 · #1 (**permalink**) 02-16-2006, 03:05 PM

Hi, I have a sandisk 1gb memory stick duo for my psp and I know that I dont get the full 1gb of free space on my psp. I was wondering why this is and if it is possible to somehow max out the space on my memory stick so I have closer to the actual 1gb of free space. Thanks

dEstroyEr · #2 (**permalink**) 02-16-2006, 03:07 PM

Your 1 GB card should only have about 940 MB free for you to use, roughly 60 Mb is used for partitioning etc, so there is no way for ya to expand the memory allocation.

CaZzUm · #3 (**permalink**) 02-16-2006, 03:08 PM

mem sticks usually havent got all the mem same with my sony 1gig

king_r4 · #4 (**permalink**) 02-16-2006, 06:42 PM

When I got my 1GB sony MS Pro Duo, it had 940mb free, then when i formatted it on the PSP it had about 970mb, don't know why though!

fjb · #5 (**permalink**) 02-16-2006, 06:56 PM

My 540 meg has about 490 free. I guess it's just for all the extra stuff going on in the psp that we don't notice like partitioning.

jcoolkatzerg · #6 (**permalink**) 02-16-2006, 07:04 PM

Quote:

Originally Posted by jcoolkatzerg

OK, here is the expenation from an IT guy (a.k.a., Me). Your computer works in base 2, right? thus, everything is mesured is 2^x. Hardware companies, on the other hand, work in base ten (i.e. your fingers). So to them, everything is 10^x.

Lets do a comparision....
Your comp/psp:1gb=2^30=1,073,741,824 bytes
MS maker:1gb=10^9=1,000,000,000 bytes

SO, your MS has 1,000,000,000 bytes, NOT 1,073,741,824 bytes. YES, the company is cheating you out of 73 Mb because they can. So lets go on. Lets convert the 1,000,000,000 bytes into what your psp thinks it has:953 Mb. That's a differance of 47 Mb. This is not because of "hidden files," a MBR, "rounding," partitioning, or anything. Reformating will NOT help. It's just because humans use base 10, and computers use base 2. By the way, this happens with your Hard drive too. I have a "60 Gb" Hdd, and yet I really only have 55.8 Gb of space. If you still don't beleve me, go to google, and type "1,000,000,000 bytes to megabytes" and it will do the conversion for you.

One of my previous post. Please search next time, this has already been discussed.