A: No. You need Custom Firmware (CFW) or HEN (Homebrew Enabler) to run backup ISOs.

How do you turn a 45GB game into a 6GB download without losing the "High Quality" visual fidelity?

: Exact disc images that the PS3 interprets as a physical disc.

: ISOs are single large files. Transferring one 10GB ISO to your PS3 is significantly faster than transferring a "Game Folder" (JB Folder) that might contain 20,000 tiny individual files.

| Term | Meaning | |------|---------| | | A complete disc image (copy) of a PS3 Blu-ray game. | | High Quality ISO | Untouched or properly ripped ISO with all game data, videos, audio intact. | | Highly Compressed | Compressed using formats like .7z , .rar , or .zip to reduce file size (sometimes 50–70% smaller). | | JB Folder | A decrypted folder format used by jailbroken PS3 or emulators (RPCS3). |

Often hosts user-uploaded ISO collections, though access may require a free account for certain titles. How to Compress PS3 ISOs