Use Iso2opl for quick USB conversions. Use OPL Manager for library management.
Iso2opl.exe is a standalone executable file (commonly part of the or PS2 ISO Tools suite) designed to convert standard PlayStation 2 .iso image files into a format readable by Open PS2 Loader (OPL) . OPL is a popular homebrew application that allows PS2 consoles (especially those with modchips or Free Memory Card Boot - FMCB) to run games from storage devices like USB drives, internal hard drives (HDD), or SMB network shares. Iso2opl exe