This is usually due to a missing or corrupted ul.cfg file. You can use the "Utilities > Recover List" function in USBUtil to rebuild it.

Here is everything you need to know about using this classic utility to digitize your library. What is USBUtil ver 1.02?

Some games require specific "MODES" to be enabled within OPL (like Mode 1 or Mode 6). Check an OPL compatibility list for your specific title.

If you’ve ever dusted off an old PlayStation 2 and wondered how to breathe new life into it without relying on a dying disc laser, you’ve likely come across . Despite being an older piece of software, it remains a cornerstone for the PS2 homebrew community, specifically for those using Open PS2 Loader (OPL).