A reproducing system includes a reproducing unit for reproducing information data of a plurality of contents from a first disk-shaped recording medium, an external interface for outputting information data reproduced from the first disk-shaped recording medium to an external system so as to cause the external system to record the reproduced information data on a second disk-shaped recording medium, a selection unit for selecting, from among the plurality of contents recorded on the first disk-shaped recording medium, a content to be copied to the second disk-shaped recording medium, and a control unit for, in a copy mode in which information data of the content selected by the selection unit among information data recorded on the first disk-shaped recording medium is output to the external system and copied to the second disk-shaped recording medium, controlling the reproducing unit and the external system to record the information data to be copied on substantially the same recording position on the second disk-shaped recording medium as a physical recording position on the first disk-shaped recording medium where the information data to be copied is recorded.