When searching online for "highly compressed" downloads, exercise extreme caution.
Use your original PS3 disc and a compatible Blu‑ray drive on your PC to extract the game as a JB Folder. Alternatively, if you have a modded PS3, you can dump the game to USB. God Of War 3 Iso File Download Highly Compressed For
The extraction process often fails, resulting in a broken ISO file that won't run in an emulator. if you have a modded PS3