Today, it’s mostly found on archive sites or old driver CDs.

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:

USBUtil Ver 1.02 is a free, open-source utility that allows users to create bootable USB drives with ease. The software is compatible with Windows operating systems and supports a wide range of USB drive formats, including FAT, FAT32, and NTFS. With USBUtil Ver 1.02, users can create bootable USB drives from ISO files, folders, or even existing bootable CDs/DVDs.

Here are the essential details and the "missing piece" most users are looking for:

usbutil list usbutil config 2 3 1 usbutil control 2 3 0x40 0xFF 0x0001 0x0000 0

To use this software, you will need a PC, your PS2 game ISOs, and a FAT32-formatted USB drive.