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Article #1533

Underground CD copying

#1533
From: Ka Lun Pang
Date: Tue, 21 Jul 1992 21:09
17 lines
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Hi folks,

More than one person have told me that some crooks have been making illegal 
copies of CDs. And one told me that those CDs are worse in fidelity.

I don't know the details of making a CD but as I understood, there are 
micro hills and valleys representing 1's and 0's. Now if the bad guys have
the technology of manufacturing CD, which part(s) of the process they can't do
perfectly to cause degradation in fidelity?

Anyone knows if there are REALLY illegal CDs on the market and if so, how do
they different from the REAL CDs?

Thanks

K.L. Pang
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Path: arc1-ca.pugleaf.net!sparky!uunet!utcsri!torn!cunews!klp

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Newsgroups: sci.electronics
Path: arc1-ca.pugleaf.net!sparky!uunet!utcsri!torn!cunews!klp
From: klp@doe.carleton.ca (Ka Lun Pang)
Subject: Underground CD copying
Message-ID: <klp.711752974@reg>
Sender: news@cunews.carleton.ca (News Administrator)
Organization: Dept. of Electronics, Carleton University
Date: Tue, 21 Jul 1992 21:09:34 GMT
Lines: 17