1. A reproducing apparatus comprising: a reproduction unit configured to reproduce content data recorded on a recording medium; a management unit configured to classify a plurality of content data recorded on the recording medium into a plurality of groups; a receiving unit configured to receive a reproduction stop instruction to stop reproducing the content data issued by an operation unit, the reproducing unit stopping reproducing the content data in response to the reproduction stop instruction; a control unit configured to, in response to the reproduction stop instruction received by the receiving unit during reproduction of the content data, output to a display device inquiry information for classifying the content data stopped from being reproduced by the reproduction stop instruction into one of the groups.