FIELD: optical information carriers, device for recording data to information carrier and/or reproducing data from information carrier and method for recording data to information carrier/reproducing aforementioned data.
SUBSTANCE: optical information carrier contains untrustworthy data, used in disk certification, and identifier for stating that untrustworthy data are included in recording/reproducing element block, while untrustworthy data are used for certification of disk on a part of information carrier or on whole information carrier. Device for recording/reproducing data contains recording/reading element for reading data and/or recording data to information carrier and control element. Method for certification of information carrier disk includes filling recording element block with untrustworthy data and adding identifier to recording element block for stating that this block includes untrustworthy data.
EFFECT: protection from unsanctioned reading of data.
11 cl, 13 dwg
