From WikiTemp, the GBAtemp wiki

How to Verify whether RegionFrii really does its job?

I tested RegionFrii by applying it to an NTSC copy of 'Boogie', setting its region to PAL. The application stated nothing went wrong, yet when loading the resulting iso in WiiBrickBlocker, it states the Country Code is still E (NTSC/USA). Loading the image in RegionFree in turn states that it in fact is a P (PAL/Europe) title. What gives?