Patent ID: 7962750

Claim:
A digital content data player for playing encrypted digital content data stored on a storage device, the digital content data player comprising: a hardware interface for connecting with the storage device; a receiver to receive previously encrypted digital content data which has been encrypted with an encrypting key, and the receiver receiving from a licensing authority previously encrypted watermarking instructions associated with the encrypted digital content the previously encrypted watermarking instructions encrypted with an encrypting key from the digital content player and an encrypted decrypting key which has been encrypted with the encrypting key from the digital content player; a player coupled to the interface for playing the stored encrypted digital content data stored on the storage device by decrypting the encrypted decrypting key with a decrypting key from the digital content player and generating usage information describing the encrypted digital content data, wherein the player includes decrypting the encrypted decrypting key with the decrypting key from the digital content player and generating a watermark using the watermarking instructions and a usage right associated with the encrypted content data and applying the watermark to the encrypted digital content data which is separate from a watermark applied to the encrypted digital content outside the digital content player; and a transmitter to transmit the usage information to a logging site on a network, the usage information informing the logging site of at least one of a playing of the stored digital content data by the player and a copying of at least part of the digital content data from the storage device to an external computer storage medium.