to upload videos to your psp you need to buy a PSP USB cable.
u plug the two small parts of the cable into your PSP then plug the big USB part into your computer.
Once you've done this make sure your PSP is on and go to the home part.
Go along to settings and choose USB connection.
Now a little box should pop up on your computer screen asking you if you want to upload pictures or videos.
Choose browse folders and you can pick either.
Once you've found what you want on your PSP right-click it and go to send to- choose memory stick and then it should send it to the PSP.
If it doesnt do this for you sorry but thats how it works on mine
