Some "highly compressed" files online are malware. Legitimate PS2 emulators (PCSX2) require a full, uncorrupted ISO. If a file claims to be 50 MB for a full PS2 game, it is almost certainly fake or a virus.
Compression works by archiving the data, similar to how a .zip or .rar file works. By removing redundant data and compressing the files inside the ISO, uploaders can shrink a 4 GB game down to 300 MB or 500 MB. total overdose ps2 iso highly compressed
: The game features "Loco Moves" (special over-the-top attacks like the "Sombrero of Death") and a combo system that rewards stylish kills with bonus points and bullet-time abilities. Atmosphere Some "highly compressed" files online are malware