Instructions
Turn off disc auto-start. Locate this option under the "System Settings" tab in the "Settings" menu. Select "Disc Auto-Start," then highlight "Off" and press "X" to confirm your settings.
Create an internal memory card. Scroll to the "Game" menu on your Xross Media Bar and select "Memory Card Utility (PS/PS2)." Press "X" and then select "Create New Internal Memory Card." Highlight your new memory card and press "Triangle." Choose to assign a new slot. Assign the card to any available slot.
Insert your PlayStation format game. Select the title from the "Game" menu and press "X" to launch the disc. A message will appear, asking you to choose a memory card slot. Select your newly created memory card slot and press "X." Your game will now automatically save to that slot.