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Re: older copy protection...

From "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com>
Newsgroups comp.arch
Subject Re: older copy protection...
Date 2025-06-05 14:49 -0700
Organization A noiseless patient Spider
Message-ID <101t3ce$1oud4$2@dont-email.me> (permalink)
References <1000ik8$233o6$1@dont-email.me>

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On 5/13/2025 3:55 PM, Chris M. Thomasson wrote:
> Does anybody know the hardware used to create the copy protection in the 
> old Dungeon Master game?
> 
> http://dmweb.free.fr/community/documentation/copy-protection/copy- 
> protection/
> 
> http://dmweb.free.fr/community/documentation/copy-protection/copy- 
> protection-atari-st/
> 
> 

  The detection of a single bit with changing value is enough for the 
program to consider the disk as original

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Thread

older copy protection... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-05-13 15:55 -0700
  Re: older copy protection... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-05-14 16:04 -0700
    Re: older copy protection... Al Kossow <aek@bitsavers.org> - 2025-05-14 16:37 -0700
      Re: older copy protection... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-05-18 01:21 -0700
        Re: older copy protection... John Levine <johnl@taugh.com> - 2025-05-19 02:09 +0000
          Re: older copy protection... Terje Mathisen <terje.mathisen@tmsw.no> - 2025-05-19 09:08 +0200
            Re: older copy protection... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-05-25 21:13 -0700
              Re: older copy protection... Vir Campestris <vir.campestris@invalid.invalid> - 2025-06-05 17:09 +0100
                Re: older copy protection... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-06-05 14:52 -0700
                Re: older copy protection... mitchalsup@aol.com (MitchAlsup1) - 2025-06-05 22:35 +0000
                Re: older copy protection... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-06-06 12:33 -0700
  Re: older copy protection... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-06-05 14:49 -0700
    Re: older copy protection... "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-06-06 12:34 -0700

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