With the accelerating adoption of digital formats in multiple application domains, it becomes possible to transfer content from one domain to another. Especially with the emerging home entertainment environment with digital storage devices, content can flow between a large variety of electronic devices. Protecting the interests of all value chain participants is the challenge of a new set of technologies called Content Management and Protection. This includes security solution from multiple application domains. Content Management and Protection is critical to the industry growth in the digital content and information era.