Things You'll Need
Instructions
Turn on your PSP and wait for it to boot to the PSP menu, which is called the PSP XMB. Locate the PSP disk drive at the back of the device and slide the release mechanism to open the drive. Insert your PSP game into the drive and close it.
Press the "Select" button to activate the "Visual Shell Menu." Locate the "USB Mode" line and select it until it reads "UMD Drive." Connect your PSP to your computer with the USB cable.
Wait for a window to appear on your computer and you will have access to the PSP UMD drive. You will see a file ending in "ISO" in the window. Right-click it and click "Copy" and click onto your desktop. Press and hold the "Ctrl" key on the keyboard. Press the "V" key to copy the game file to your computer.
Press the "O" button on the PSP when the transfer is complete and your PSP will exit USB mode. Press the "Select" button once again and change USB mode back to "Memory Stick." Connect your PSP to your computer once again and you will have access to your PSP memory stick.
Copy the ISO file into the "ISO" folder on your memory stick. When the transfer is complete, disconnect the USB cable from the PSP and remove the PSP game from the disk drive. Navigate to the the game menu on the PSP and select the game from the list.