Hmm..

Not a terribly bad idea, if you were able to extract an iso on a 1.5, replace the gameshare files with something to try and exploit the psp, then game share. Im not sure if its been tried or what you'd try and exploit, but if you were to try it with a huge ammount of data you might get an overflow. Might be worth looking into as such.

(using an iso loader like umd emulator or something)

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