Things You'll Need
Instructions
Turn off the PSP and connect it to your computer with the USB cable.
Turn on the PSP and go into "Settings." From "Settings," have your PSP sync with the computer.
Go into "My Computer" on your computer. If the PSP is successfully connected to the computer, you will see another device in the My Computer folder.
Go into the PSP memory card folder and open the folder labeled PSP. Create a new folder and name it "MP_ROOT". Create another folder called "100mnv01".
Save your movies in the 100mnv01 folder. Make sure they are in mp4 format or they will not be viewable on the PSP. You can now watch your movies by selecting the 100mnv01 folder from the PSP menu.