On 6/06/97, Edward Barrow <edward[_at_]plato32.demon.co.uk> wrote:
> >
> > All of these mechanisms designed to prevent duplication of digital
> > informtion can and will be circumvented.
>
> "late decryption into volatile space"
>
> absolute prevention of unauthorised copying - the COPICAT approach -
> which is technically difficult and can compromise usability, and the
> tracing approach (e.g. IMPRIMATUR) using embedded digital watermarks,
> which is on the whole technically easier. Both approaches are valid and
> neither is perfect.
Both are technically complex and can be trivially circumvented by simply re-recording the signal. If you somehow block recording within the home-PC at a digital level (and don't bring down the OS) then a couple of stereo mini-jack cables from the soundcard will provide a reasonable-quality analog signal to record, and direct digital-out from audio cards and motherboards is likely to be commonplace before copyprevention technologies become established in the marketplace.
It's a losing battle, and the record industry may just beat the non-specialist retail sector into oblivion.
CYa,
JEREMY
Jeremy G. Byrne
<jeremy[_at_]midnight.com.au>
Received on Mon Jun 09 1997 - 12:32:35 GMT
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