FIELD: optical information carrier, meant for reading only.
SUBSTANCE: information carrier contains a set of areas, wherein data is recorded in form of recesses, where aforementioned set of areas contains a service area, into which carrier-unique code is recorded during manufacture, input area, user data area and output area. Template of recesses created in service area is different from template of recesses created in at least one area among input area, user data area and output area. In a variant, modulation method, used for recording recesses in service area, is different from modulation method during recording of recesses in at least one area among input area, user data area and output area.
EFFECT: increased efficiency of data reproduction.
20 cl, 23 dwg
Authors
Dates
2007-12-10—Published
2004-02-03—Filed