Use a Smart Media Card, Compact Flash Card, SD Card, USB Flash Drive or even a USB HDD with a PSP. Team Xecuter is developing a simple plug in device where you can expand the PSP Memory Stick Port to connect to several other memory devices, thus saving massive costs and giving you a multitude of storage options for your PSP no matter what you wish to play with be it games, web browsers, ebooks, music players, media managers and much more ! Using this same development kit we have been able to downgrade v1.52 / v1.51 down to v1.50 or even a v1.00 with no problems whatsoever Link.