To output natural data which are set close to a state where error is not occurring, as further as possible, without interrupting or distorting data, even if an error occurs in the contents.

When it is decided that an error is occurring in main video data, it is confirmed by a data selection unit 19 of a camcorder 100 whether an error is occurring in a frame of sub-video data containing time information, corresponding to a frame in which the relevant error has occurred. When no error occurs in the sub-video data, the relevant sub-video data are selected. An output control unit 20 replaces the relevant selected sub-video data into main video data and displays them.