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Posted by Bill Vermillion on 10/11/05 03:15
In article <slrndkm7ij.sel.aznomad@ip70-176-155-130.ph.ph.cox.net>,
AZ Nomad <aznomad@PmunOgeBOX.com> wrote:
>On Mon, 10 Oct 2005 18:43:59 -0700, jazu <nospam> wrote:
>
>
>>Is that true that rental DVD have some safety feature to prevent copying?
>yes, and it's exactly the same as the "safety features" of purchased DVDs.
>DVD players output a defective NTSC signal in the form of macrovision. Modern
>TV sets are built to ignore the defect while modern VCRs will either record at a
>constantly changing brightness level or refuse to record at all.
And the DVRs will issue a note on the screen and say 'prohibited'.
--
Bill Vermillion - bv @ wjv . com
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