| More than likely your lappy will not be able to read Memory Stick Duo, because not only is it half the length of a regular Memory Stick, it is also thinner. You would probably have to buy a Memory Stick adaptor to plug the Memory Stick Duo into, then it should be able to fit into your lappy's media reader slot.
My advice is to buy the cable, I find the Duo slot on the PSP to be a bit hard to access, and it's kind of inconvenient to keep pulling out the Memory Stick everytime you want to transfer something. The cable is so much more convenient in this sense. And honestly, the cable is probably like 5-10 bucks |