FIELD: physics.
SUBSTANCE: invention pertains to access to extra information content for users, who own licensed information carrying medium. The first remote module (12) sends extra data to the reading/recording device. The recording and/or player device (11) is made with provision for detecting presence of an information carrying medium in the recording and/or player device and authentication of the information carrying medium.
EFFECT: method of information exchange improves the functioning of the recording and player device.
6 cl, 4 dwg
Authors
Dates
2008-06-20—Published
2003-08-13—Filed