The primary goal of USBUtil is to convert PS2 game images (ISO files) into a format compatible with older USB-loading software like USBExtreme USBAdvance , and later, Open PS2 Loader (OPL) Bypassing File Size Limits:
In the mid-2000s, the PS2 homebrew scene was burgeoning. Early methods of running backup games involved bulky hard drives connected via the Network Adapter (internal HDD). However, the release of software like USB Advance and USB Extreme allowed games to be run from USB flash drives. usbutil ver 1.02