Playback device, playback method, and recording medium

A playback device that reads out a video stream, which is encoded video information, from a non-transitory recording medium, and plays the video stream, the playback device comprising:

• an attribute reader that reads out first attribute information, indicating whether a dynamic range of luminance of the video stream is a first dynamic range or a second dynamic range that is wider than the first dynamic range, from a management information file recorded in the recording medium in a manner correlated with the video stream;
• a decoder that generates decoded video information by reading the video stream out from the non-transitory recording medium and decoding the video stream;
• and
• an outputter that, in a case where the first attribute information that has been read out indicates the second dynamic range, outputs the decoded video information, along with maximum luminance information indicating a maximum luminance of the video stream in accordance with the second dynamic range,
• wherein, in a case where the first attribute information indicates the second dynamic range, the first attribute information also indicates a type of the second dynamic range, and
• wherein the outputter outputs the maximum luminance information and the decoded video information in accordance with the type of the second dynamic range.