Information recording medium, information playback method, and information recording method
According to this invention, an information recording medium has the first and second sides (D11, D12). The information recording medium includes the first information recording layer (D12) which includes the first reflecting layer (D13) reflecting incident light with a predetermined intensity from...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | According to this invention, an information recording medium has the first and second sides (D11, D12). The information recording medium includes the first information recording layer (D12) which includes the first reflecting layer (D13) reflecting incident light with a predetermined intensity from the first side, the second information recording layer (D22) which includes a second reflecting layer (D23) reflecting incident light with a predetermined intensity from the second side, an adhesion layer (D30) which adheres the first information recording layer and the second information recording layer, and a unique information recording area (BCA) which is formed by burst-cutting the first reflecting layer and the second reflecting layer in correspondence with medium unique information, using incident light with an intensity higher than the predetermined intensity from one of the first side and the second side. |
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