A CPU divides a moving image file at a divided frame position, thereby generating a first divided moving image file including a first frame and another divided moving image file. The CPU detects a frame position where an object appears for the first time in the reproduction order from the other divided moving image file, and generates a file that describes the detected position as a new face information management file. The CPU controls a recording/reproduction control circuit to store the generated new face information management file in a recording medium in association with the other divided moving image file.