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Date: | Fri, 22 Sep 2000 13:58:57 -0700 |
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Norman M. Schwartz ([log in to unmask]) wrote:
>A plant in Italy, "OPTI.ME.S" also produced CDs which have bronzed.
>Several discs in my collection on the affected Nuova Era label have
>similarly become noisy and unplayable. Unfortunately in this case after
>I contacted the importer/distributor they were unwilling to provide
>replacement discs nor make any adjustments at all.
Also Arkadia from the same factory. I know several people who have nicely
bronzing copies of Horenstein's Symphonie Fantastique - alas available from
no other source. Still, that's what CD burners are for and I've at least
managed to salvage the symphony, if not the couplings.
Deryk Barker
[log in to unmask]
[The known Arkadia discs are listed at the site along with the PDO discs.
I sould mention that there's a potential longevity problem with CD-R
and CD-RW discs (i.e., those that are used in CD burners). These discs
use a fundamentally different technology from the commercially available
stamped CDs we've been talking about so far. A photo-activated dye
layer is used to record the information on a CD-R or CD-RW. The
long-term stability of this dye has been questioned, and tests seem to
indicate that a lifetime in the range of 10 to 20 years is to be expected
before data loss starts to occur. Last I heard the national association
of archivist (or some such group) had decided to recommend agaist using
CD-R and CD-RW discs for archival purposes because of this limited
life. Your mileage may, of course, vary. -Dave]
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