Bogus strings with Pal-Patcher? (Megalex this is for you)

[Megalexxx]

This code is in fact a zone detection.
Sometimes, it forces 50 or 60 Hz, but sometimes, it simply lets you choose between these 2 modes (so that if you patch it, you won't have choice anymore).
Use it only if other patches didn't work : sometimes, it really removes a protection...