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From: Folkert Rienstra on 10 Apr 2008 18:43
Eric Gisin wrote in
news:q5ednY-kTLq0eGXanZ2dnUVZ_tCrnZ2d(a)uniservecommunications
> "Dave" <someplace(a)nowhere-nice.com> wrote in message
> news:47f894e4(a)212.67.96.135...
> >
> > I think your biggest issue would be:
> >
> > 1) Finding something to read the hard disk or DVD. In a few decades
> > time, I doubt it will be easy to find something to read a SATA disk, in
> Use a USB-SATA converter.
>
> > much the same way as you would have a very hard time finding a computer
> > to read an 8" floppy disk. Same goes for a DVD storage - do you really
> You mean you don't have an 8" drive sitting in a box?
>
> > believe in a few decades time anything will read a DVD?
> Nonsense. All HD players still do DVD and CD formats.
>
> > The SCSI interface has to date been more stable than any other.
> You have adapters from the original SCSI-1 connnectors to SCSI-3?
> >
> > 2) Decay of electrolytic capacitors is likely to be an isssue.

> Hard drives have never used them.

Nonsense.

> >
> > 3) I assume the most likely things you would want to keep over decades
> > would be photographs. Experience has shown images in stone have lasted
> > thousands of years. Getting the images carved into stone or metal would
> > probably be best.
> >
> > 4) Getting images painted by an artist would be very good and not
> > particularly expensive. We know many paintings have lasted centuries.
> > Not as long as stone/metal to date, but more practical and gives better
> > colour information.
> >
> > 5) Experience has shown many photographs have lasted well when using wet
> > chemistry - silver based photographic medium.
> >
> > 5) Nobody really knows how well digital data will store. My suggestions
> > for the best chance would be to
> >
> > i) Keep on a few different media - optical, magnetic.
> > ii) Transfer it to current technology every 5-10 years. Keep the old
> > media anyway.
> > iii) Keep data in different locations.
> >
> > iv) I dont think external magnetic fields would be an issue at all, but
> > I know mu-metal would be more suitable than lead for that purpose. But
> > that really would be the last of your worries.
> > v) I used to work developing protection systems for nuclear
> > electromagnetic pulse. I am aware the aim would be to explode a bomb
> > that would damage electronics, but not kill people. So after an EMP
> > strike, food might not be the issue you suspect.
> >
> > On the assumption you want to store photographs, I suggest
> >
> > stone > oil painting > photographs > digital storeage.
> >
> > In principle, digital storage would not degrade over time, but I think
> > the chances of the images lasting in practice is a lot less than with
> > phtographs or oil painting.
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