RE: [MLUG - DISCUSSION] DVd saga... over?

[Ian Scott <EMAIL:PROTECTED>]

--On Tuesday, May 01, 2001 09:30:20 -0500 "Spurling, Shannon " 
<EMAIL:PROTECTED> wrote:

> Okay, here's the question. If the VCR removes the macrovision, then if I
> connect straight up to the TV, I will be blocked from seeing the content I
> have viewing rights to. Correct?
> So the TV has to remove it. If I have an older TV that was bought before
> macrovision, and so it does not have the filter hardware, I must buy an
> external filter. Wait a second, what are they going to do? Make me buy a
> new TV? This whole thing seams kind of stupid. If I were to record the
> macrovision signal completely, I should be able to repeat it in a way that
> behaves as the original, and defeats the "Copy protection".

This isn't how Macrovision works.  Read the Macrovision FAQ at 
http://www.digital-digest.com/dvd/support/macro.html for more info.
To make a long story short, it exploits part of the AGC circuit that is 
part of the VHS spec.  TVs, if they have an AGC circuit at all, probably 
aren't designed like the VHS ones, so they're immune.  So, TVs of any age 
are just fine. (And so are some older VCRs)

That site also has schematics for circuits to remove Macrovision.

Ian
--
To manage your subscription, go to http://mlug.missouri.edu/members/edit.php

Archives are available at http://mlug.missouri.edu/list-archives/