Self-Protecting Digital Content

Self Protecting Digital Content (SPDC) is a copy protection (digital rights management) concept designed by Cryptography Research, Inc. (CRI). CRI worked with Twentieth Century Fox, Sony, and Panasonic to implement this architecture into BD+, which was adopted by the Blu-ray Disc Association for protecting Blu-ray discs.

In November 2007, the SPDC business unit and technology was acquired by Macrovision to complement its existing Analog Copy Protection (ACP) and Ripguard technology. In 2011, Irdeto acquired SPDC and BD+ from Macrovision (then known as Rovi).