my psp is being stoopid

when I download a demo and whenI quit out of it andI want to play it again it gives me an error and i cant play it again.

please help me!!!

Where are you getting these demos? There are a few sites out there but I would stick to the PSN or pspdemocenter.com when it comes to demos. I've never had any trouble with any of the demos off those two sites.

Just like that guy ^, I use PSN and pspdemocenter and I don't have any probems like that.

Same happens to me. except I have this one memory stick that works sometimes. Try formatting your memory card. Save your game data and stuff on your memory card to your computer and then format it. Put your data back on when you get finished. And then try to download a demo. I also use PSN to download demos.