Patent ID: 8411541

Claim:
A method of reproducing a multi-layered optical information storage medium, the method comprising: providing the multi-layered optical information storage medium; reading, by a pickup of a reproducing apparatus, at least one of first information and second information recorded on the multi-layered optical information storage medium comprising a first storage layer comprising a first lead-in area having the first information; and a second storage layer comprising a second lead-in area having the second information, the first information comprising: physical format information for both the first storage layer and the second storage layer indicating whether the first storage layer and the second storage layer are read-only or recordable, the physical format information of the first information comprising information indicating a book type that the first storage layer conforms to; and hybrid identification information indicating whether an additional storage layer exists in the multi-layered optical information storage medium, the additional storage layer being reproducible by a second laser different from a first laser, the first laser being used to reproduce the first and second storage layers; and the second information comprising: the physical format information for both the first storage layer and the second storage layer indicating whether the first storage layer and the second storage layer are read-only or recordable, the physical format information of the second information comprising information indicating a book type that the second storage layer conforms to; and the hybrid identification information indicating whether the additional storage layer exists in the multi-layered optical information storage medium; and determining, by a controller of the reproducing apparatus, whether the first storage layer and the second storage layer are read-only or recordable, or whether the additional storage layer exists in the multi-layered optical information storage medium, based on the at least one of the first information and the second information.