Things You'll Need
Instructions
Insert your Memory Stick Pro Duo into the memory stick slot on the side of your PSP console.
Turn on your PSP and PS3 systems. Connect your PSP to your PS3 system using the PSP USB connection cable.
Navigate to the "Settings" section on your PSP's Cross Media Bar. Select "USB Connection" to place your PSP into USB mode.
Navigate to the "Video" section on your PS3's Cross Media Bar. Locate the video file that you wish to save to your Memory Stick Pro Duo and press the "Triangle" button. Select the "Move" or "Copy" option from the menu (whether the file can be copied or merely moved depends on the movie file type). Select your PSP from the menu and press the "X" button to begin the copying/moving process. Allow several minutes for this process to finish.
Press the "Circle" button on your PSP to switch your PSP out of USB mode. Unplug your PSP from your PS3 console. The video file will now be saved to the Memory Stick Pro Duo inside of your PSP.