The PSP scene’s hero format is (Compressed ISO). Tools like CISO or YACC can crush a standard ISO by 40-60% with zero gameplay loss.
But there’s a catch. A standard PS1 or PSP ISO can eat up 700MB to 1.5GB of space. On a modern phone or PC, that’s nothing. But on a (remember those overpriced Sony proprietary sticks)? Or a retro handheld with limited storage? That’s a problem. resident evil psp iso highly compressed