connect ur psp to ur computer with a USB
on my computer it is memory stick: (J)
go to watevr it is
click on nitePR
there should be a text document in there lableled UCUS-98645
you put all ur codes in tht text document
every single game has a different "label" to a text document
so if you only have to games like socom and ratchet and clank
you would have two different text documents in there