durable CD-Test

[Hilbrecht@xxxxxxxxxxxx (Heinz Hilbrecht)]

>When was this new material introduced? I have computer CD's that I have
>accumulated over the last 3  to 4 years so I was wondering how one tells if
>the CD they have is old coating or new coating? Any ideas??

Sorry, no. I am afraid because testing (scratching etc.) is limited it will
be hard to tell. I heard about repair kits, however, that are said to be
available in some CD shops. Maybe these people know when the new coating
was introduced? I simply watch out for alteration on my computer CDs. I was
shown a slightly damaged CD last year where the coating was somewhat milky.

Heinz Hilbrecht




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Heinz Hilbrecht
Geological Institute
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