Step 1: Plug in your USB to your computer and to your psp
Step 2: Click on your Usb icon on your xmb, unless you have a slim they connect by themsevles
Step 3: Click and drag push to your video folder on your msroot (the very first folders you see)
Step 3: Exit Out from USB
Step 4: Go to the video icon on your XMB
Step 5: Go to the Video you put on your psp memory stick
Step 6: Enjoy! (optional) :Headbang: