A data message signal embodied in a processor readable memory and useable for authenticating data stored on at least one media to prevent at least one of piracy, unauthorized access and unauthorized copying of the data stored on said media, said data message signal comprising at least one predetermined error introduced in the data message signal comprising a mixed data message, the at least one predetermined error comprising at least one authentication key or component thereof, used in authenticating whether the data message signal is authorized, said at least one predetermined error being sufficiently minimal such that the at least one predetermined error is capable of being removed from the data message signal without substantially altering an audible component thereof, and said data message signal being transmitted substantially free of the at least one predetermined error to prevent a destination processor receiving the audible component of the data message signal from receiving the at least one authentication key or component thereof, and whereby the transmitted data message signal is used in preventing unauthorized access to the data by preventing the destination processor from authenticating whether the audible component of the data message signal is authorized.