The second invention is the video synthesizing apparatus of the first invention and is characterized in that the data for display includes second displayed area information that represents a displayed area of the second video, imparted in correspondence with time in the second video, and the designating means, when displaying the second video, performs a process of designating {HEAD ~ the displayed position} in {TAIL ~ accordance} with the displayed area information and the second displayed area information included in the data for display 
The second invention is the video synthesizing apparatus of the first invention and is characterized in that the data for display includes second displayed area information that represents a displayed area of the second video , imparted in correspondence with time in the second video , and the designating means , when displaying the second video , performs a process of designating { HEAD ~ the displayed position } in { TAIL ~ accordance } with the displayed area information and the second displayed area information included in the data for display
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