What must be installed in a TiVo digital video recorder to record encrypted video services?

To record encrypted video services on a TiVo digital video recorder, the technology that must be installed involves the Content Scramble System (CSS) and Content Protection for Prerecorded Media (CPPM). CSS is a digital rights management (DRM) system that protects copyrighted content on DVDs, ensuring that the content cannot be freely copied. On the other hand, CPPM is a related technology that adds another layer of protection specifically aimed at preventing unauthorized copying of media.

Both CSS and CPPM are essential for decoding and allowing the recording of encrypted media streams, which is a requirement when using a TiVo device to capture content that is protected to ensure content owners’ rights are preserved. This is particularly crucial in the context of subscription video services, where encryption is commonly employed to protect digital media from being freely accessed or distributed.

The other options listed—such as DRM, AVB, and HDCP—pertain to different aspects of digital content management and streaming but do not specifically address the recording capabilities required for encrypted video services on a TiVo device. DRM is a broad term covering various protective measures, AVB refers to a set of standards for video and audio transmission, while HDCP is focused primarily on preventing unauthorized copying of digital audio and video content