In the video displaying apparatus and {HEAD ~ method}, the data for display is used to determine the displayed position of the child frame in correspondence with the playback time of {TAIL ~ the parent frame video} every time it is readout 
In the video displaying apparatus and { HEAD ~ method } , the data for display is used to determine the displayed position of the child frame in correspondence with the playback time of { TAIL ~ the parent frame video } every time it is readout
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH