chdman verify -i game.chd
Download (the only active PS2 emulator). Get the Nightly build, not the old stable 1.6. Nightly builds have better compatibility with compressed formats. i ps2 highly compressed games iso upd
To use PS2 highly compressed games ISO updates, you will need a few tools and some basic technical knowledge: chdman verify -i game
Some games compress much better than others because they contain less "dummy data" on the disc: God of War I & II: Can be reduced significantly. Grand Theft Auto: San Andreas: High compression potential. i ps2 highly compressed games iso upd
Some popular websites that offer PS2 highly compressed games ISO updates include:
An older format primarily for PSP but sometimes used for PS2 games to reduce size. Recommended Sources for PS2 ROMs