iPod Comparison Newsday #146;s Stephen Williams reports on seeing Sony #146;s NW-HD1 audio player in a store:  #147; #145;How #146;s it compare to the iPod? #146; I asked a salesman.  #145;Battery life is a lot longer, up to 30 hours, #146; he said.  #145;The LCD readout is kind of dim, #146; I said.   #146;Battery life is a lot longer, #146; he said.  #145;I understand it can #146;t play MP3 files, #146; I said.  #145;Battery life is a lot longer, #146; he said. #148; Aug 17