General compression that requires the emulator to "unzip" the game into RAM, which can cause lag on older systems. Top Games That Compress Exceptionally Well
The gold standard for many years, offering decent reduction while remaining playable. pcsx2 games highly compressed work
Standard PS2 discs contain a lot of "dummy data" used to fill physical space and improve read speeds on original hardware. Emulators like PCSX2 don't need this. Compression tools identify these empty sectors and remove them. Common formats include: General compression that requires the emulator to "unzip"