FIELD: engineering of optical substances for storing information.
SUBSTANCE: optical substance for storing information has input area, user data area and output area, while data, indicating maximal and/or minimal recording speeds, maximal and minimal recording speeds or compatible recording speeds, are recorded in re-recordable area of at least one of two zones - input zone or output zone.
EFFECT: reliable recording of data onto disk, which is not capable of reaching due recording speed because of manufacturing conditions, at optimal speed with consideration of previously recorded data about speed of operation.
4 cl, 5 dwg
