http://www.w3.org/ns/prov#value | - In accordance with another aspect of the present invention, the above and other objects can be accomplished by the provision of a high-density read-only optical disc including a lead-in area, a data area and a lead-out area, having: a specific area contained in the lead-in area on which a pit string of a mark and space or a space and mark having a recording pattern of an HFM (High-Frequency Modula
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