version of the game. It is a smaller file by design—roughly —and runs efficiently on mobile or PC emulators like Quick Tips for Emulation for the PS2 version or for the PSP version.
Smaller file sizes mean faster downloads and less stress on memory cards or SD cards for mobile emulation. How to Play the ISO on Modern Devices wwe smackdown vs raw 2011 ps2 iso highly compressed repack
A standard WWE SmackDown vs. Raw 2011 PS2 DVD contains roughly 3GB to 4.3GB of data. A highly compressed repack uses advanced compression algorithms (such as LZMA, KGB, or custom archiving tools) to strip away redundant data padding, dummy files, and sometimes compress audio/video files. version of the game
Cleaning out "dummy data" that developers originally used to fill physical DVD space for faster disc-reading speeds. Core Features of WWE SmackDown vs. Raw 2011 How to Play the ISO on Modern Devices