24 Jul
2001
24 Jul
'01
10:12 a.m.
Sellam Ismail said:
On Tue, 24 Jul 2001, Carlini, Antonio wrote:
And a test I use - a carbon-arc-lamp nicknamed "buttercup". (If there
are any ex-Dabney-House readers here, they'll get the reference.) I can
only run it intermittently, but all cyanine-based CD-R's become unreadable
after a few hours of 10% exposure to it. (I think a few hours is somewhere
around a decade of solar UV exposure.)
The CompUSA-super-duper cheapies (CMC Magnetics by the ATIP code) become
unreadable after just a few minutes. I think these use the cyanine dye
without any stabilizers at all.
I've melted pthalocyanine-based CD-R's (Kodak Ultima and Mitsui Gold) by
putting them too close to the arc, but never damaged the data otherwise :-)
Of course, two seconds in the microwave on "high" completely destroys them
*all*!
Tim.
Personally, I have only had one read-failure in
several hundred burns.
That's not counting a few coasters along the way - this was a partial
read-failure some six months to a year later when I came to use the
CD.
Wait ten or twenty years, and then make your assessment. That's what Tim
is concerned with.