hellow ,

i just got the PSP i have 2.60 version .
and i want to play games from my memory card
i downloaded a few games from the net in ISO format or BIN and i think they were copied from the real UMD games .
my qustion is how do i can play those games from my memory card i dont have a clew can someone please instruct me how to do it and what to download for this step by step

i thank you in advance .