You will encounter two primary formats for PS3 "ROMs" (game backups):
Suddenly, a figure emerged from the shadows. It was an old man with a kind face and a twinkle in his eye.
: Many third-party ROM sites host files that may contain malware or intrusive advertisements. If you choose to download from the web, ensure you are using a reputable community-vetted source. How to Emulate Sonic Unleashed