So does the Zune artist artwork that gets pulled down when you listen to a particular artist only work with mp3 and wma? I have OneRepublic's discography in mp4 audio layer and I can't id3 tag it but it was already labeled when I checked it out in the Zune software it synced flawlessly without having to convert or anything and it came up nicely labeled and arranged in the Zune hub on my HD7 but it for some reason will not pull the band's picture for the background. I know there is a background available because I've checked to see how their albums and songs are labeled in the Zune Marketplace and they are both labeled exactly the same... Any thoughts?