How do you make iso files work on a psp?
First you need a downgrader for the psp. (Only firmware with 3.50 and under can downgrade.Once you get firmware 1.50, go to www.psp-hacks.com to get the custom firmware. Once at the site, look to the left and click on PSP Downloads. Then go to firmware. Then custom firmware. Get version 3.52 M33. Once you upgrade to that, get 3.52 M33-4. Then turn the psp on. Once you see the menu, press start. Go to USB Device and click left on the D-Pad. It should now say UMD Disk. Go to exit then go to the settings option, then USB Connection. Have the game in the UMD Slot and start the usb connection. The computer should now read the psp and the folder should have a file called NP9660.ISO. Copy it to your computer then cancel the connection. Click the start button again then go down to USB Device and click left on thw D-Pad. It should now say Memory Stick. Hook the psp back to the computer and the computer should now be reading the memory stick. Copy NP9660.ISO from your computer to your ISO folder
