Abstract: A media processor is capable of keeping disposal history of media regardless of whether the media is externally created media or not. In the media processor, while used media set in a created media storage unit is being conveyed to a media disposal mechanism by a media conveying mechanism, a label surface image printed on a label surface of the media is read by a line sensor. Subsequently, the media is disposed of by the media disposal mechanism such that reading and writing are not possible. In a storage unit, the read image printed on the label surface is stored as media disposal history.