| 摘要 |
In an optical disc having a subcode recorded therein in association with main data, is constituted on the packet basis, each packet being composed of four packs, each pack being composed of 24 symbols, each symbol being composed of 6 bits corresponding to channels R to W of the subcode. Mode information for setting a recording mode of information to be recorded in the pack is recorded at a leading position of each pack. Each pack is composed of a text area 2 in which text information obtained on the basis of letter information associated with the main data is recorded on 8-bit basis, and an ID area 1 in which sort information indicating the sort of the text information is recorded.
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