Instructions
From the PlayStation 3 main menu, go to the "Game" menu, then "Memory Card Utility (PS/PS2)." Press the "X" button.
Navigate to "New Internal Memory Card" and press "X."
Select "Internal Memory Card (PS)" to create an original PlayStation memory card. Press "X" again.
Change the name of the memory card, if desired, then highlight "OK" and press "X" when finished.
Assign the memory card to a slot. By default, it is set to assign to slot 1. Press "X" to finish the set up.
Insert the "Metal Gear Solid" game into the PlayStation 3. When you want to save the game, press select to enter your Codec, then highlight Mei Ling's name. Press the "Circle" button to call Mei Ling. When she asks if you would like to save, choose "yes." The game is now saved to the internal memory card.