Revisiting a Classic: The "Download-201-GRE-PSP-ISO" Gaming Experience

: Playing from an ISO on a memory stick is generally faster than reading from a physical UMD.

: ISOs serve as digital backups for classic titles like Gretzky NHL or God of War: Chains of Olympus . Setting Up Your PSP for ISO Games

An ISO file is a digital "snapshot" of a physical game disc, containing all the data—from game files to metadata—packaged into one file.