Things You'll Need
Instructions
Turn on the PS3 and access Multiman from the main screen. Insert the game disk that you wish to install on your PS3.
Locate the game disk on the Multiman startup screen and select it. Look at the menu on the right on the game menu for "Backup/Copy." Select this choice by pressing the "X" on the control pad.
Click "Yes" after you are prompted as to whether you want to copy the game to the PS3's hard drive. If the game takes up more than 4 gigabytes of hard drive space, Multiman will break it into 4 gigabyte portions and put them on the external drive. If you are using Multiman version 2.00.01 or above, you can play the game off of the external drive. If you have an older version of Multiman, you need to copy the files over to your PS3 hard drive in order to play the game. It will take about 10 minutes to install 4 gigabytes of game data onto your hard drive.