when i downloaded Patapon 3 demo it says you'll need the 6.20 software

so i downloaded it and installed it,then i find that the Patapon 3 demo is working

but i lost all my other games and i can't even re download it to my PSP

is CSO and ISO not supported?

what is the Supported format you guys know

tell me please By the way im using PSP-2000


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