"Highly compressed" ISOs are created by stripping away this non-essential padding or by using advanced file formats:
: A popular alternative that hosts many games and often includes pre-applied patches or translations. ps2 highly compressed games iso link
PS2 game discs (DVD5 or DVD9) typically hold 1–8 GB of data. “Highly compressed” files (e.g., CSO, GZ, or CHD formats) reduce size by removing dummy data and compressing actual game data. "Highly compressed" ISOs are created by stripping away
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