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How to Get CSO Files

A CSO file is a compressed version of an ISO file; using a CSO file instead of an ISO file is a smart way to save memory, but the quality of the CSO file may not be as good as that of the uncompressed version. CSO and ISO files are games which you can upload and play on a Sony PlayStation Portable device which features custom firmware.

Instructions

- 1
  Direct your browser to the PSPISO web page.
- 2
  Click "Register" on the top toolbar. Fill in your details and follow the on-screen instructions to complete your registration.
- 3
  Click "Home" to return to the home page and click "PSP Games."
- 4
  Click one of the links to open a thread, then scroll through the available games in that thread. Once you find a game you wish to download, click the download link to begin. Once the download is complete, the downloaded file can be found in the "Downloads" folder on your computer -- click the start button and open "Downloads."

PSP Games