A chapter creating device includes a storage unit that stores character string data received from a plurality of terminals and the date and time when the character string data is registered, a chapter candidate selecting unit that displays live data stored in a live data storage unit on a display unit such that the user selects the live data using an input unit, and a chapter creating unit that creates chapter data including the character string data of the selected live data as the header of the chapter data and the data registration date and time of the selected live data as the time information of the chapter data.
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