Alright, I've been searching around on how to play ISO backups stored on my PC HDD and play them on my PSP, but I didn't manage to figure out how. I have PMPlayer Advance 3.1.4 which allows you to do so, but I can't figure how to get it to work. If anyone knows how or knows another method, it would be cool if you could help, thanks ahead of time.

EDIT: I'm running 6.35 PROB-3 on a PSP-3001.