Please help with delete error

[scareg]

well first off I got the loco roco demo from this website

http://www.pspcrazy.com/?page=Story&id=1043

anyway I put the eboot in a folder called locoroco and turn on my 1.5 psp startup devhook using FW 2.71

I look for my loco roco demo and its not there. I plug in my psp go to the locoroco demo folder and instead of the eboot I have these
a hidden folder named
5765602&.q=p

a GAM file named [][]2flash.gam
and 5 other files none of these files can be deleted from the computer or my psp when i try to delete it from my computer it brings up this {cannont delete file:Cannont rea from the source file or disk.}

so how do i delete these files thanks!

[Malksta]

erm.. try FORMAT ur MEMORY STICK

[scareg]

Thanks alot that fixed it!