Things You'll Need
Instructions
Turn your PSP on and insert your PSP memory stick. Connect the USB cable from your computer to your PSP. This will turn on your PSP USB connection, making it visible on your computer.
Go to your list of drives on your computer and select your PSP to open the file system. You will see a list of folders and files after opening the PSP drive.
Open the folder named "ISO," which is where your game will be going in a second. Copy/paste the CSO game into this folder and wait as it completes the transfer.
Disconnect the PSP from the computer after it is finished transferring the game. You can do this by pressing the "Square" button on the PSP itself or you can just unplug the USB cable.
Navigate to the PSP game menu where your game will be waiting for you. Select it and your game will start.