One other thing-  the '100 year' was for factory CDs, not CR-Rs, right?
The research showed factory CDs being a LOT better than CDRs for 
stability/longevity.

otoh, microfilm doesn't have the "factory vs burn-your-own" divide, does 
it?

regards
Jay

Jay Maechtlen
This is just a test... if this was an actual sig, you would have been 
mildly amused... 

Records Management Program <[log in to unmask]> wrote on 02/23/2006 
12:20:51 PM:

> BUT....the LE for microfilm is supported by technical testing using
> artificial aging techniques.  In addition, there are myriad of storage,
> handling, manufacturing, etc. standards that help insure the LE is
> supported.  For CDs, no such standards exist and technical testing for
> LE is not performed on "used" media - only new, unused media at the
> manufacture level.  Research undertaken by John Bogert in the late 1990s
> and early 2000s showed the actual LE for most "used" CDs only ranged
> from 10 years to an occasional 50 years.  So the odds you mention are
> not accurate.
> 


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