{TAIL ~ A second object} of this invention is to provide a method for controlling {HEAD ~ an optical disk system} 
{ TAIL ~ A second object } of this invention is to provide a method for controlling { HEAD ~ an optical disk system }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD