I’ve recently become the owner of a Dell Latitude E6520, and while reinstalling my software, I figured I’d get my Zune software installed so that my Zune HD could sync up with this laptop. And boy did I see one of my favorite “undocumented features” of the Zune software – barfing on playlists and throwing a lot of multiple copies, like this (click on the image for a larger, clearer picture):

So now… in addition to adding all of my music/videos/pictures libraries, I now have to clean up Zune software’s playlist crud. Really?!?
As much as I like the Zune hardware, I think it’s time for me to look at other portable audio/video devices. Their software leaves A LOT to be desired.