Yeah, the wording around it is a little confusing, but the tl;dr on it is you use their firmware flashing tool to overwrite the existing firmware on your Blu-ra

Yeah, the wording around it is a little confusing, but the tl;dr on it is you use their firmware flashing tool to overwrite the existing firmware on your Blu-ray/dvd/UHD drive if it's compatible. Then there are no more restrictions on what your drive can read whatsoever. Region locks, DRM, etc all go away.