I had a bad experience today. I plugged in my nano to a computer where I usually sync my iPhone. It completely wiped out the songs on my nano. I managed to resurrect it but now I do not know what will happen if I go to sync my iPhone. Sorry if this is a dumb question with a simple answer, but how I do manage this? I have not encountered this before. Thanks. EDIT: Different sets of music for the nano and iPhone, very little overlap.