From: "Dave Ings" 

It was supposed to prevent digital extraction of the CDs data, like you do
when you rip the CD to your hard drive. It did this (roughly) by injecting
various errors into the disk when mastered, errors that an analog CD player
would recover from or otherwise ignore in an inaudible fashion, but that
would cause digital extraction to fail.

Disks encoded with one of the several similar schemes "out there"
in fact do not meet Phillips' CD specs, and I believe at one point Phillips
was legally insisting that any disk so mastered not carry the official CD
logo anywhere on the packaging.

I have no idea why the copy protection didn't work. You sure you did a
digital and not an analog rip? I think YMMV was the bottom line on these
copy hacks, since apparently sometimes the disks wouldn't even play where
they "should" have, in regular CD players (depending on brand,
age etc).
--
Regards,
Dave Ings,
Toronto, Canada

"Antti Kurenniemi"  wrote in
message news:3e112917$1{at}w3.nls.net...
> Hey ho,
>
>
> yesterday at work one of the guys had a Phil Collins (cough cough) CD that
> he wanted to make a copy from to play in his car, but he didn't know if it
> was possible because it had a large "copy protection" sticker in it. I
said
> let's see what happens, put it in the CD drive and copied it with Easy CD
> creator, and it plays a-ok in any player we could find. We also tried
> copying the copy, and that worked equally well.
>
> So, the question is, wasn't copy protection supposed to prevent me from
> making copies? If so, what did I miss? This was a plain, new Dell box that
> hadn't been used by anyone but me and had nothing but the normal
> pre-installed Roxio burning stuff, so no ripping software or anything like
> that. I don't get it? Anyone have any CD's you can't copy - how does that
> (not) work?
>
>
> Antti Kurenniemi
>
>

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