HP Z558 HP Digital Entertainment Center - Software Guide - Page 144

Copy protection for DVD movies, CGMS*, Macrovision, Signal Method

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Copy protection for DVD movies Most DVD movies in the market are encrypted with copy protection to prevent illegal duplication of copyrighted material. This protection distorts the picture quality when copied or prevents it from being copied. The following tables shows two of the currently used copy protection methods and their effect on playback. n HP supports lawful use of technology and does not endorse or encourage the use of our products for purposes other than those permitted by copyright law. CGMS* Signal Method Copy freely Reserved Copy once Copy never Source NTSC NTSC NTSC NTSC Record Yes Yes Yes Yes *CGMS is Copy Generation Management System and Redistribution Control Macrovision Signal Method Null Detected Source Any Any Record Yes Yes Encrypt No No Yes Yes Playback Unlimited Unlimited Unlimited 48 hours Encrypt No Yes Playback Unlimited 48 hours 134 Microsoft Windows XP Media Center Edition 2005 Reference Guide

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134
Microsoft Windows XP Media Center Edition 2005 Reference Guide
Copy protection for DVD movies
Most DVD movies in the market are encrypted with copy
protection to prevent illegal duplication of copyrighted
material. This protection distorts the picture quality when
copied or prevents it from being copied. The following
tables shows two of the currently used copy protection
methods and their effect on playback.
CGMS*
*CGMS is Copy Generation Management System and Redistribution Control
Macrovision
n
HP supports lawful use of technology and
does not endorse or encourage the use of our
products for purposes other than those
permitted by copyright law.
Signal Method
Source
Record
Encrypt
Playback
Copy freely
NTSC
Yes
No
Unlimited
Reserved
NTSC
Yes
No
Unlimited
Copy once
NTSC
Yes
Yes
Unlimited
Copy never
NTSC
Yes
Yes
48 hours
Signal Method
Source
Record
Encrypt
Playback
Null
Any
Yes
No
Unlimited
Detected
Any
Yes
Yes
48 hours