| 摘要 |
In addition to normal subtitles, easy-to-see large letters, easy-to-read letters intended for children, and comments are available on the screen in the same language as that used in subtitles. An optical disk has a management area and a data area. In the data area, main picture information, sub-picture information used to construct streams in different languages, and audio information have been recorded. In the management area, attribute information used to identify each piece of sub-picture information on the streams has been recorded. The attribute information includes language code indicating kinds of language. The language code is supplemented with a code extension indicating differences in the size of characters and/or description obtained from the sub-picture information. Sub-pictures include a stream of easy-to-see large letters and a stream of easy-to-read letters intended for children. <IMAGE>
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