Reproduction device, reproduction method, reproduction program, recording medium, and data structure

Abstract

When content is reproduced from a disc, audio and a subtitle can be properly and automatically selected. An original language can be set as a language of an audio stream to be reproduced on a player side. An audio stream of the original language is described at a position that comes first in a clip information file. When audio and a subtitle are automatically set, if their languages match, the subtitle is not displayed. When player settingdenotes that audio is an original language and subtitle Japanese and streamscontained in a disc are an audio stream of Japanese (original language), an audio stream of English, a subtitle stream of English, and a subtitle stream of Japanese, the audio stream of Japanese as the original language and the subtitle stream of Japanese are selected according to the automatic setting. Since their languages match, although streamsfinally selected are the audio stream of Japanese and the subtitle stream of Japanese, the subtitle stream of Japanese is not displayed.