A moving image is divided on the basis of a plurality of items of additional data which indicate states upon sensing the moving image. The additional data is added to the moving image and is able to be read out for each item from the moving image. An item group formed of one or a plurality of items selected from the plurality of items is defined, and division information corresponding to the item group is generated on the basis of the additional data of the items which belong to the item group. In a case that a plurality of division information are generated in correspondence with a plurality of item groups, the plurality of division information generated for each item group are hierarchized, and division positions are added. The division information is held in correspondence with the moving image data.