I've had a good play with IRshell today and Id advise you to go down the WIFI route rather than the usb! Unless you have a really long usb cable! if your going to sit infront of your computer with a usb cable plugged into you psp you might aswell use windows to manage your files! but using wifi i can understand people putting up with the FM in IRshell! Anything to get out of having to walk down the stairs!! Good luck!
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