ZSO files can significantly shrink large ISOs, allowing you to store more games on smaller memory sticks or SD cards.
While many generic ISO tools like PowerISO or ImgBurn handle standard image tasks, specialized homebrew tools are required for ZSO: iso to zso converter
Unlike older compression formats that could cause stuttering in FMVs (full-motion videos) or long loading screens, ZSO's LZ4 algorithm is lightweight enough to be handled by original console hardware without lagging. ZSO files can significantly shrink large ISOs, allowing