Thanks for your reply. I'm using Windows, have tried your "show Kind" suggestion and everything seems in order - all my tunes are AAC, protected AAC or MPEG audio files. No WMAs show up.

In response to your next para, I mean the iPod is missing songs. It's incredible if I used the header "iTunes Music Lib missing songs" because the opposite is true - must have been nervous, it being my first post. Plus maybe I'm just dumb