FIELD: information technology.
SUBSTANCE: method of distributing content in a multimedia device communicably connected to a network involves obtaining protected content originating from a first digital rights management (DRM) system, the protected content having a limited exercisable right associated therewith; obtaining an extension of the limited exercisable right when a condition is satisfied, wherein the condition is satisfied at the moment when the multimedia device enters a second DRM system different from the first DRM system from which the protected content originates, the extension of the limited exercisable right is obtained from an entity other than the multimedia device; transmitting, at the moment of entering the second DRM system, random data of the protected content to the entity from which the extension is obtained; receiving an extension from an anomaly detecting entity connected to the first DRM system and second DRM system in response to transmission of random data, wherein the anomaly detecting entity assigns the extension to the protected content; assigning the extension to the protected content.
EFFECT: content copyright protection during transfer of digital content from one DRM system to another.
14 cl, 4 dwg
