Things You'll Need
Instructions
Turn on your Sony PSP.
Place the USB cable connector into the top of the PSP and insert the other end into your computer's USB port.
Proceed to the left of the PSP's main menu using the directional pad and stop on "System Settings."
Scroll down and select "USB Connection" with the "X" button. This will place your PSP into "USB Mode" and your computer will recognize the device as an additional drive.