I finally picked up my PSP again and it has been a year or two so I don't quite remember the whole adding new games and such.

I downloaded Patapon and NFS Pro Street ISO's and when i copy them to my PSP, they take up space but when i go to games, they aren't there.
How can i fix this problem? Can someone give me step by step instructions? Thanks~

P.S. My PSP has other ISO/CSO games so i dont need to downgrade or anything of the sort because it is already modded to play ISO's and such.

First off, what firmware do you have?

upgrade to 3.71 m33 or whatever the newest one is.

and make sure they are in the iso folder.

also 3.90m33 works aswell and with the 1.50 kernal all my homebrew still work