sry i dont know , i only have a 512

As of now, the firmware prevents anyone from using anything bigger than 4gb. There are no workarounds for this right now, but people are toying with partitioning and seeing if they can cut the drives into 4gb partitions to use as much storage as they want.

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I've heard this too, but I've also heard that this is not possible, unless you have some sort of switch to change partitions manually, because the PSP will only read the first partition.

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I've got 2 gig and i've never heard of anything bigger than 4gb

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Hummmmm....I haven't read anything on the partioning of the drive, but drawing on my knowlage of computer hardware, I think that the limitation is not in the firmware of the psp, but in the partion itself. By default, the psp formats it's drives in the FAT16 partioning style. Because FAT16 is so old, it has a limit in the space of the drive which it's on (in this case, 4 gigs). If the psp will recognize FAT32, then there is a maximum drive space of 2 Terabytes! If someone would like to test converting a FAT16 to FAT32 memorystick and seeing if the psp recognizies it, please post it. Personaly, I see no way for this to brick your psp. But don't hold me to it.
If you want more information on FAT, go here : http://en.wikipedia.org/wiki/File_Allocation_Table

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I just converted my 1 gig memstick from FAT16 to FAT32, and yes, the psp does read and write to it in FAT32. I don't feel like modifiying a harddrive though to see if it will read something bigger then 4 gigs...but this at least shows some potential. Hehe...

EDIT:NO, I will NOT post a video. As of yet, I see no reason to convert a drive smaller then 4 gigs to FAT32. Also, there may be a limitation in the firmware as stupid said. All I'm saying is that the psp will read and write to a FAT32 drive, opening up the potential ability to use drives larger then 4 gigs.

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