Method for authentication of digital content used or accessed with secondary devices to reduce unauthorized use or distribution

摘要: A method for reducing unauthorized use of software including digital content by secondary devices such as audio players, PDA's, cellular telephones, and DVD players example, includes an authorized representative entity that generates authentication code based on registration information associated with the devices. Self-authentication may be provided a resident installed primary device, computer, and/or device to enhance privacy user information. Authentication is performed using code(s) control access device. Access include inhibiting transfer from or any whose hardware does not at least partially match corresponding encoded in code.