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