> Aaron seems to be claiming files that he originally wrote and licensed under 3 clause > bsd at the time. On the assumption that the license was there when people modified > it. I don't know the legal implications of that.
Well if he wrote the files and placed them under a BSD licence, to which other developers contributed (under the same licence) then they are available under BSD, which is commercially and proprietary compatible already.
So the debate is hardly about that, Aaron likely have had this in mind for quite some time and has licenced his code appropriately, the question here is about the code other developers have contributed under the Mame licence.