Re: CDs, was DATs, Was Re: arsclist Duplicating casette tapes

["Steven Smolian" <smolians@xxxxxxxxx>]

Steve, which side was facing the window?

Steve Smolian
From: "Steve Green" <sgreen@xxxxxxxxxxxxxxxxxxx>
To: <ARSCLIST@xxxxxxxxxxxxxxxx>
Sent: Friday, August 09, 2002 4:21 PM
Subject: Re: CDs, was DATs, Was Re: arsclist Duplicating casette tapes


> I'm not jumping into the fray here and not lobbying for or against
anything
> in particular but--
>
> On April 16, 2001 I took a Quantegy gold CD-R with audio tracks recorded
on
> it and placed it leaning up on a window sill here in northern Nevada. The
> CD-R was thus exposed to full sunlight everyday, plus the full strength of
> the sun's heat in summer and cold winter temperatures (not sub-zero
because
> it was on the inside of the window...). I did this as a simple real world
> experiment, more for curiosity than anything else, to see how well CD-R
> would hold up under intense UV radiation and fluctuating temperature
> "extremes." A few months later, I popped the CD in a player and it worked
> fine. I returned the disc to it's resting place on the window sill and
left
> it there undisturbed until today. Inspired by the current ARSC list
> discussion, I just now took the same CD-R, blew the dust off it with
> compressed air, stuck it in a Mac G4 CD drive and voila, it played fine--
> at least, it recognized all the tracks fine. I haven't played it through
> from end to end, just a few seconds of each track. Also, at the moment
we're
> not set up here to measure BLER so I can't say what's really going on with
> the CD-R but we are now talking about a disc exposed to "elements" (some
> anyway) for a year and four months (a winter and almost two summers) and
the
> information is still retrievable. Though not a scientific experiment, it
has
> certainly eased my mind considerably about the robustness of CD-R as a
> storage medium/format.
>
> I understand there are many variables in the manufacture and playback
> compatibility of CD-R, so this is not conclusive in any sense of the word.
> I'm just sharing something I found impressive.
>
> Again, this is not intended as an endorsement of CD-R as a preservation
> format since there is discussion in some circles about other options
> considered to be superior or preferable. But I thought this report from
the
> trenches might interest some readers on the list.
>
>
> Steve Green
> Western Folklife Center
>
> -
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>

-
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