You should read my post which is just above yours and vote
Not likely, as you didn't offer any solution for me.
I don't care about Zune and do not want synchronize my MP3s with phone. I make my own MP3s (speech and books) and use them as directories. I have to create albs only because stupid windows phone does not have functionality as MP3 player for $30 and does not play directories I have to edit everything I plan to use on phone and no database helps me.
Now files do not duplicate, just if that f***ing player remembered what was played last time.