Re: CD's and digital audio (was Why I hate CDs)

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Article #4410

#4410

From: Henry Spencer
Date: Mon, 19 Mar 1990 16:37

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In article <6296@blake.acs.washington.edu> wiml@blake.acs.washington.edu (William Lewis) writes:
>>3. If you think CD's are bad, DAT has a 45DB NOTCH cut in it at 15KHZ...
>
>>	What on earth... are... you... talking about?????
>
>    I seem to remember this being some sort of bizarre copy protection
>scheme -- the DAT will refuse to record unless there are frequencies
>in this notch, and commercial stuff will be distributed with those
>frequencies cut out. It sounds too stupid to be true...

It *was* too stupid to be true.  There was such a proposal; it has been
scrapped.  There will be some *digital* copy protection on DAT tapes, so
you can't use consumer DAT gear to make unlimited digital copies (one
generation of copies will be okay), but the notch idea to prevent analog
copying caused such an uproar that it was abandoned.
-- 
MSDOS, abbrev:  Maybe SomeDay |     Henry Spencer at U of Toronto Zoology
an Operating System.          | uunet!attcan!utzoo!henry henry@zoo.toronto.edu

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<sa0KhqO00Uh7M2R25C@andrew.cmu.edu> <1554@redsox.bsw.com> <38844@iuvax.cs.indiana.edu> <2486@rodan.acs.syr.edu> <9204@sdcc6.ucsd.edu> <6296@blake.acs.washington.edu>

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Newsgroups: sci.electronics
Path: arc1-ca.pugleaf.net!utzoo!henry
From: henry@utzoo.uucp (Henry Spencer)
Subject: Re: CD's and digital audio (was Why I hate CDs)
Message-ID: <1990Mar19.163704.22192@utzoo.uucp>
Organization: U of Toronto Zoology
References: <sa0KhqO00Uh7M2R25C@andrew.cmu.edu> <1554@redsox.bsw.com> <38844@iuvax.cs.indiana.edu> <2486@rodan.acs.syr.edu> <9204@sdcc6.ucsd.edu> <6296@blake.acs.washington.edu>
Date: Mon, 19 Mar 90 16:37:04 GMT

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