The record medium which possesses the spare territory which is allotted the device in order be adapted to allot the spare territory, making use of the method and that

摘要

Method of allotting the spare territory, that device and its record medium are offered. As for the method of allotting the spare territory which relates to this invention, with the defective information regarding the data which is recorded the stage which forms the information regarding the spare territory which was adjusted the stage which records the data (a) with 1st recording operation in the data area and, (b) on the basis of the defect which occurs in the data which is recorded, and, (c) the information regarding the spare territory which is formed, by the aforementioned 1st recording operation, the stage which it records to the aforementioned data area as 1st temporary defective information and, (d) information of defective management in order to manage the aforementioned 1st temporary defective information, lead/readInside in territory, the readout territory, and the territory outside, it features that the stage which it records to the temporary defective management information territory which is provided at least in one, as information of 1st temporary defective management is included. Because of this, by the fact that be adapted the spare territory is allotted to defective occurrence of record medium, furthermore the data area can be used efficiently.