At 11:38 AM -0500 3/5/07, Walter Knapp wrote:
>Posted by: "Rob Danielson"
>
>> Why one emphasize keeping a MD or an Hi-MD disc for archive purposes
>> when one could keep several CD-R and DVD-R copies and not have to
>> worry about a transfer issues in 30 years? The list archive has some
>> pretty good info on CD/DVD archive media discussions options and
>> research. Rob D.
>>
>
>The CD-R and DVD-R medium is barely archival, particularly the brands
>that folks typically use. You have to transfer a fair bit to be safe for
>30 years.
I'll dig up the pertinent discussion on our list. I believe the term
for particular disc media that was being tested for and projected was
quite a bit longer than 30 years.
>
>The MD leg of your archive will occupy a lot less space than the larger
>disks.
>
>You will probably find transfer issues with CD-R & DVD-R in the next 30
>years. You must expect to have to keep changing formats and keep up to dat=
e.
Maybe both the original MD and disks would be prudent then. I'd like
to encourage everyone take all of the measures and precautions we
have. None of them, fortunately, are that expensive. Rob D.
>
>Walt
--
Rob Danielson
Peck School of the Arts
University of Wisconsin-Milwaukee
http://www.uwm.edu/~type/audio-art-tech-gallery/
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