Things You'll Need
Instructions
Connect your USB hard drive to your PlayStation 3.
Turn on your PlayStation 3.
Open the "Settings" menu and then select "System Settings."
Scroll down and select "Backup Utility" and then select "Backup."
Select "USB Device" as the destination for your game save files.
Select "Backup." Your game save files are extracted from your PlayStation 3 and placed on your USB hard drive.