Instructions
Log in to your PS3 account.
Scroll to the "Games" section using the left-stick. Press the "X" button of your controller.
Navigate to the "Game Saves" using the left-stick or directional pad (D-pad). Tap the "X" button.
Insert your USB Flash drive, SD card or memory stick into the USB port of the PS3. If necessary, insert a USB adapter and slide the device into the female slot of the USB adapter.
Press the Triangle button. Scroll to "Copy" and press the "X" button. Highlight the appropriate memory device and press the "X" button.
Log out of your PS3 account and log in to the profile you wish to modify.
Highlight "Backup Utility" and scroll to "Restore." Highlight the appropriate memory device and press the "X" button.