well you need to get file assistant 4 then dump any file it lets you dump in both flashes to the root of your memory stick(or any selected folder)

theres limitations to what files you can dump... yes you can dump them all BUT it wont dump them (as the file size is 0kb in size)

heres a photo to show you most of the files that i have been able to dump from flash0 ... i have fonts and dreg and ireg files too but thats nothing really...

(oh yeah just so you know i have 2.60 usa psp firmware)