Robert Reed wrote:
> The biggest part is to be able to reproduce it after it has been sitting
> around for a few years, tapes have a known history for this..... DVD and
> burned CD history is not a known quantity yet.

I believe there have been studies performed to predict the
"half-life" of burned CDs. About ten years ago, I was working with a
doctor who wanted to put all his patient records onto some form of media
other than paper files. Unfortunately, nothing available at that time
would last as long as the legal requirement for record retention (20
years). I think that NIST had estimated the time by which 50% of burned
CDs will no longer retain all their data as 10 years.

Ray Parks

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