Higher ID3v1.1 Genre tags get replaced with 126 (Goa)
Reading and writing a tag with a genre value of 255
(used by many apps for 'no genre' or any genre indicies
in the 126-147 range (I'm unsure where the extension
came from) get mapped to 126 which is read by many apps
as goa. I've done some simple fixes which I'll
attach... Useful for the genre list if nothing else...