Abstract: Road information of surroundings of an own vehicle is kept as latest version as possible, and road information of distant areas are updated efficiently. A map providing device according to the present invention searches for an update target portion included in a planned travel route, and also searches for an update target portion with an end point of the planned travel route being a starting point.

Abstract: Road information of surroundings of an own vehicle is kept as latest version as possible, and road information of distant areas are updated efficiently. A map providing device according to the present invention searches for an update target portion included in a planned travel route, and also searches for an update target portion with an end point of the planned travel route being a starting point.

Abstract: A recording/playback system in which a recording file is stored in a storage through a recording operation or a pre-programmed recording operation includes a summary information generating unit that generates summary playback information of the recording file at the time of recording through the recording operation or the pre-programmed recording operation and causes the summary playback information to be stored in the storage, a summary playback button that makes an instruction for summary playback of the recording file based on the summary playback information, and an overall control unit that switches between a normal playback state and a summary playback state upon an instruction from the summary playback button during normal playback that has started through a playback button that makes an instruction for playback of the recording file.