To play highly compressed PS3 ISO games, you will need:

A standard PS3 game ISO (an archival copy of a Blu-ray disc) typically ranges from . "Highly compressed" versions repackage that data using algorithms like 7-Zip (LZMA2) , WinRAR (RAR5) , or repack tools from scene groups. The goal is to remove redundant data and compress the rest.

PS3 folders to ISO to save space without losing game quality?