Patent ID: 8179759

Claim:
An information storage medium, comprising: a lead-in area, comprising a pre-recorded area and a recordable area, the recordable area comprising an access control area for storing a plurality of access control information blocks; and a data area, wherein: an access control information block of the plurality of access control information blocks includes an identifier corresponding to the access control information block, specific information corresponding to a predetermined function, and common information, the identifier being used by a recording/reproducing apparatus in determining whether the access control information block is related to a recognizable function or an unrecognizable function, the specific information is used in performing the predetermined function by a recording/reproducing apparatus capable of recognizing the identifier, the common information is used by a recording/reproducing apparatus incapable of recognizing the identifier to access the information storage medium, the common information comprising at least one value which is set according to a value in the specific information, the common information includes defect management area recordability information, spare area recordability information, and user data area recordability information, the defect management area recordability information comprises recordability information on a defect management area excluding a disk definition structure, the disk definition structure storing state information of the access control information, and the state information of the access control information comprises information of recording states or defect states of the access control information recorded on the access control area.