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How to Put CSO Games onto a PSP

A PSP CSO is an image of a PSP game that can be loaded into any PSP running custom firmware, which is unsigned code that runs the PSP. There are so many advantages of having your own, legally purchased games in CSO format. They are condensed, so they are much smaller in size. If you have a large memory stick, you can put multiple CSOs in your PSP at one time. You do not have to lug around all your UMD (Universal Media Disc) games. Take advantage of this simple process of getting them on your PSP.

Things You'll Need

Sony PSP running custom firmware
PSP ISO Compressor
Pro Duo memory stick
USB cable
Computer running Windows XP or Vista

Instructions

- 1
  Download and install the PSP ISO Compressor (see Resources). Turn on your PSP that is running custom firmware. Press "Select," and you will be presented with the VSH menu. Navigate down to "USB Device" and change it to "UMD Disc." Insert your game into the PSP. Attach the USB cable to the top of it. Plug the PSP into your computer, and it will automatically connect.
- 2
  On your computer, select "View Files" when you are presented with an autoplay window. On your computer, another window appears with an ISO file in it. Copy and paste the ISO file to your desktop. Disconnect your PSP from your computer.
- 3
  Open the PSP ISO Compressor program. On the left, select the "Compress ISO->CSO" option. On the right, select the input file(s) button, and select the ISO file you just copied to your desktop. Select "Compress," and your ISO will be compressed into CSO format and saved to your desktop.
- 4
  On your PSP, go back to the VSH menu and change "USB Device" back to "Memory Stick." This is done by moving your cursor down the VSH menu, highlighting "USB Device" and pressing the left arrow on the analog stick. Stop when it says "Memory Stick." Plug your PSP back into the computer.
- 5
  View the files on you PSP's memory stick. There will be a folder named ''ISO." Simply copy and paste the CSO into this folder, disconnect your PSP from the computer and navigate to your game from the PSP's menu. Select it and play.

Sony PSP