Re: DVD-RAM archival

[ChadB@xxxxxxxxxxxxxxxxxxxx]

Just got the reply from Rochester:




The Industry Standard answer is:

DVD-RAM media is rated for 100,000 overwrites.

Conservative estimate archival life of a DVD-RAM media is 10 years.

   Regards,
     Rochester Support Center




Most quotations i've found so far for DVD-RAM are in the 25/30 year range.
Like the other posting mentioned, the hardware usually becomes obsolete a
good bit quicker though.... so it's probably more important to have a plan
to keep several copies in the right environment, treat them with care, and
have a plan to move them to the newer media formats as necessary.  Best
publication I found is NIST Special Publication 500-252 (Care and Handling
of CDs and DVDs - A guide for Librarians and Archivists).  More reading to
do....

Thanks for the ideas so far...






                                                                       
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This site quotes 30 years
http://en.wikipedia.org/wiki/DVD-RAM

Rob Berendt
--
Group Dekko Services, LLC
Dept 01.073
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





From:
ChadB@xxxxxxxxxxxxxxxxxxxx
To:
midrange-l@xxxxxxxxxxxx
Date:
12/04/2008 11:59 AM
Subject:
DVD-RAM archival
Sent by:
midrange-l-bounces@xxxxxxxxxxxx





Wanted to get some ideas from the list here...

For several of the latest models of machines (520/525), the writeable DVD
drive has used DVD-RAM media.  We have always used the writeable DVD media
as the media used to store/archive our purged business data.  As we get
more and more formal and policy driven, our policy speaks of this data as
being kept 'forever'.  We all know that digital media isn't necessarily
forever...

Has anyone else here approached this question/issue of long term archival
of data on DVD?  I'm doing some web research on DVD-RAM longevity and
finding alot of variability on quoted longevity and also variability of
test results trying to measure longevity.

Ours is a small scale archival set of 5-10 DVD-RAMs worth of data that
grows pretty slowly... but i'm guessing that some here may have already
dealt with such questions on a larger and more stringent scale...  I also
have a PMR out to IBM to get any thoughts they may provide.


(If you're not comfortable discussing on-list, let me know and another
contact method would be fine also...)
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