Recording medium, playback method, and playback device

A playback device that reads out and plays streams from a recording medium, in which are recorded

• a stream file including a first luminance video expressed by luminance of a first dynamic range, and a second luminance video expressed by luminance of a second dynamic range that is broader than the first dynamic range, and
• a playlist file for controlling playback of the stream file,
• first and second combination information, representing combinations of elementary streams that each can be played at the same time in a same playback section, being described in the playlist file,
• elementary streams that can be played at the same time with the first luminance video in this playback section being all listed in the first combination information, and
• elementary streams that can be played at the same time with the second luminance video in this playback section being all listed in the second combination information,
• wherein all of the elementary streams that can be played at the same time with the first luminance video listed in the first combination information, and all of the elementary streams that can be played at the same time with the second luminance video listed in the second combination information are included in the stream files including the first luminance video and the second luminance video,
• the playback device comprising:
• a management information processing unit that
• in a case of playing the first luminance video, reads out any one of the elementary streams listed in the first combination information of the playlist file, and plays at the same time with the first luminance video;
• and
• in a case of playing the second luminance video, reads out any one of the elementary streams listed in the second combination information of the playlist file, and plays at the same time with the second luminance video.