gigachrisdark

what are subfolders......forgive me if i am asking a retarded question in not that tech savvy

so what happens to the games the umd's that i bought like ff7 crisis core and phantasy star portable that would be complete bull s***t if i could'nt play them on my psp 4000 sony is going to piss off alot of people if they dont make it backwards compatiable . i mean i know the umd are a pain in the arse but still do what the damn ds did and make it backwards compatiable ya feel