tubbycricket,

we need disq or trevarthan to answer this, as I have no code-level insight on how the extraction of artists works. I never experienced wrong or generic arist names when there are proper id3 tags.
I do experience wired album art sometimes, but I am not too worried if I see landscapes, barely covered women, or koalas haning from trees on my screen (maybe something to do with my childhood experiences..---))))))