Besides, a memory part capable of storing files of the contents, and a signal reproducing part reproducing the files of the contents and generating {HEAD ~ the signal} may be included inside {TAIL ~ the apparatus body} 
Besides , a memory part capable of storing files of the contents , and a signal reproducing part reproducing the files of the contents and generating { HEAD ~ the signal } may be included inside { TAIL ~ the apparatus body }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL