FIELD: information technologies.
SUBSTANCE: optical disk, method and device of defect information control on optical disk are provided by temporary defect management area (TDMA). Method comprises preparation of temporary defect management area (TDMA), in which temporary defect list (TDFL) is recorded as information on defects management for management of defect area on optical disk, record of the last temporary defect list with accumulation relative to previous temporary defect list into time defect management area, and record of information on location for indication of location of the last temporary defect list in temporary defect management area together with temporary defect list for more efficient management of temporary defect list.
EFFECT: improved identification of defect area and method of defect area management.
24 cl, 9 dwg
