Task: Question Answering
Input (English): Context: When I got my new mac computer it once again reset all of the playcounts on my itunes back to zero making all of the carefully planned playlists that I used obsolete . This was the second time in a month so I was a little disconcerted . So , on a whim , I changed my way of listening to music on itunes and my ipod . ( This actually first occurred to me on an airplane during 3 and a half hours on the tarmac at Newark Airport . ). 
Question: What may be the plausible reason I was disconcerted ?
Output (English): All of my music was erased .