archival cd-r - really true?

Eric J Korpela korpela at ssl.berkeley.edu
Mon Mar 20 16:18:51 CST 2006


On 3/15/06, Jim Leonard <trixter at oldskool.org> wrote:
> Not sure I understand your point, because floppies wouldn't pass the
> pinking shears test either.  Come to think of it, I can't think of *any*
> media that would survive that test except for maybe paper.


There probably aren't many things that would pass the test with a bit
error rate of what any archivist would consider adequate (one
unrecoverable error every megabit?)  aside from a holographic
recording technique at low enough density.  If you have assume you
have a 5x5 cm medium with a native resolution of about 1Mbit per
square cm, that would mean if you store 1Mbit on the whole thing, you
should be able to fully recover the data from any 1 square cm piece
regardless of its shape.  You should be able to do that with any
arbitrary medium provided you transform the data properly.

Of course, no recording devices currently use this technique, so
you'll need to build one of your own.




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