in fact I think this a bigger problem that we realize. try this. put a cd into windows media player look at the results, then do the same with iTunes you will find that the information is different, because most of these databases are using information given
by users i.e us. you will find the Diana ross & the supremes can be id as Diana ross, supremes or maybe Diana ross and the supremes/the supremes. the problems to be that there is no accepted format for any artist, or album.
I have amotown library of over 45,00 tracks. and its a full time job to keep correcting the metadata because its never the same from diffent players or databases. for instance the all media database that wmp uses contains many thousands of errors, albums
that don't exist etc.