Sony KDE-50XS955 FAQs: Digital Cable Ready Reference - Page 6
DFAST is the acronym for Dynamic Feedback Arrangement Scrambling Technique. - parts
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Scientific-Atlanta: In order to start cable service for this device, please contact your cable provider: CableCARDTM ID: XXX-XXX-XXX-XXX-X Host ID: XXX-XXX-XXX-XXX-X Press Menu to return to the Set Up Screen What is DFAST? DFAST is the acronym for Dynamic Feedback Arrangement Scrambling Technique. DFAST is the system that enables a DCR product (also called the Host device) to communicate securely with a CableCARD™. Through this communication, the CableCARD™ is able to send all authorized services to the Host device. For services that carry copy protection restrictions, the CableCARD™ activates DFAST encryption to protect the content when it is passed to the Host device. The manufacturer of the DCR product obtains the right to use the DFAST technology from CableLabs through a license agreement (either the DFAST License Agreement or the POD-Host Interface License Agreement, "PHILA"). The license for the DFAST technology requires that DCR products be produced with limited vulnerability to tampering and with a certain degree of robustness. Why is some programming recordable and some programming not recordable? As a part of the regulations for DCR, the FCC has permitted programmers to activate copy protection of some digital content; the DFAST and PHILA license agreements require DCR products to respond to copy protection directives distributed with the programming. This copy protection allows programmers to limit the programming that the end consumer can copy digitally. Copy protection directives are signaled through Copy Control Information embedded in the digital content and may be "Copy Never," "Copy One Generation (i.e., no copy of a copy can be made)," "Copy No More" or "Copy Freely." The FCC's rules permit programmers to mark various categories of 6