An apparatus 17, wherein the audio or video signals are of a third format, {HEAD ~ the third format} being different from {TAIL ~ the first data format} and the second data format 
different from
An apparatus 17 , wherein the audio or video signals are of a third format , { HEAD ~ the third format } being different from { TAIL ~ the first data format } and the second data format
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH