Patent ID: 8144554

Claim:
An information storage medium, comprising: a plurality of temporary defect management areas in which are recorded: a temporary disc management structure (TDMS), the TDMS comprising a temporary defect list (TDFL); a temporary disc defect structure (TDDS); and a space bit map; and an access information area in which access information is recorded, the access information indicating a temporary defect management area in which a latest temporary disc management structure is recorded, among the plurality of temporary defect management areas, wherein the temporary defect list comprises location information of defective blocks, wherein the temporary disc defect structure comprises information indicating a location in which the temporary defect list is recorded, wherein the space bit map represents a data recording status of the information storage medium by allocating different bit values to clusters in order to distinguish clusters in which data is recorded from clusters in which data is not recorded, and wherein the access information comprises a temporary disc defect structure identical to the temporary disc defect structure recorded in the temporary defect management area.