of the present disclosure comprises step 401 acquiring authentication data recorded in an audio visual product using a player 100 and transmitting the authentication data to a mobile communication device 200 step 402 transmitting the authentication data from the mobile communication device 200 to an authentication server 300 step 403 authenticating the authentication data at the authentication server 300 to provide an authentication result step 404 forwarding the authentication result from the mobile communication device 200 to the player 100 the method as provided will be illustrated more clearly with reference to fig3 which illustrates data transmission associated with the authentication system in accordance with the first embodiment of the present disclosure as is shown in fig3 the mobile communication device 200 forwards the authentication information which the player 100 acquires from the audio visual product to the authentication server 300 based on the authentication information the authentication server 300 generates the corresponding authentication result and eventually returns the authentication result to the player 100 through the mobile communication device 200 the player 100 then determines whether to render the audio visual product based on the authentication result for example if the authentication result indicates that it is authorized to render the audio visual product the player 100 may render the product on the contrary if the authentication result indicates that it is forbidden to render that product the player 100 will refuse to render the product according to the authentication result generally speaking the authentication information may be implemented as an encrypted key based on the.