The "Extra Quality" tag is vital because it signifies that the . You aren't playing a low-resolution version; you are playing the full game, just optimized for storage. Why Compress Your PS3 ISOs?
Due to copyright laws, we cannot link direct downloads. However, for preservation purposes, look for communities that verify "Extra Quality" releases:
is a complete, uncompressed archival image of a game disc. While it offers 100% compatibility, it often includes "padding"—empty data used to fill space on physical Blu-ray discs. Highly Compressed ISOs
How To Install PS3 Games In ISO Format: A Simple Guide - Ftp
: One of the most effective ways to "compress" a game without losing quality is to remove unused language files (subtitles/audio) and the PS3_UPDATE folder, which can save roughly 256MB per game.
: Official digital versions of games which are already optimized for storage by Sony.
In summary, "highly compressed" PS3 ISOs are less about shrinking the actual game assets and more about while maintaining the original data's integrity for the best possible gaming experience. How to Install PS3 PKG Files from exFAT & NTFS USB Drives