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