The copy protection originally designed to protect content on DVDs has been overcome some years ago. What other methods can you find today that movie studios are using to protect their content on DVDs or other optical media?
According to Abelson, DVD’s often use the Content Scrambling System (CSS) in order to protect them from being copied. The CSS encrypts DVD contents in order to limit unauthorized copying. However, apparently, this system turned out to be weak and was cracked within three years after it was announced. But as of last year, Patronus DVD anti-rip copy protection has been used as a way to protect DVDs. The Patronus helps content owners protect digital assets by encapsulating image files on a DVD disc causing access to the content to be controlled. The encapsulation is introduced in areas of the disc that are not read by DVD players during playback. Since no copy protection is unavoidable, it is important to be realistic about the system and to not set expectations too high. The goal of the Patronus is to make copying extremely difficult for the average person. Even though it is not completely fool proof, it provides a reliable, efficient, and easy way to protect DVDs from being copied.
Information found at www.fortiumtech.com.
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