For maximum performance and to get the most out of all the advanced features on the device, you'll need a SanDisk Gaming Memory Stick PRO Duo. With this, you will be able to save your game data. This game card maximize your world of entertainment.
Customer Reviews of SanDisk 4GB Memory Stick PRO Duo™ for Gaming Cards
Plugged it right in to my PsP with no problems whatsoever, works great and for less than half the price of a Sony made product, i highly recommend!
was very happy with purchase
I bought this to run in my PSP. No problems what so ever! Reads/writes quickly. I have my PSP overclocked and running straight off of the stick. This card works great!