An ISO file is a digital "snapshot" of a physical game disc, containing all the data鈥攆rom game files to metadata鈥攑ackaged into one file.
To run downloaded ISO files, your device must have Custom Firmware (CFW) installed, such as . Once your firmware is ready, follow these steps to add games:
Revisiting a Classic: The "Download-201-GRE-PSP-ISO" Gaming Experience