From: rosenblatt, joseph [mailto:[log in to unmask]]

>  I also think that it behooves us to keep the old technology in
> working order so we can view the original in its true form.

 The BBC in 1986 took time off from being Saddam's mouthpiece to running a
project that was
 to "update" William the Conqueror's Domesday Book project from 1086. They
got about 20 000 schools to make some sort of inventory of their localities.
The BBC collated the data and stored it on what was then state-of-the-art
storage devices, i.e. video discs.

 17 years later these discs are unreadable.

 On another mailing list I remarked that I intended to transfer music I had
on
 reel-to-reel tape to MP3 CDs. I was (am) rather worried about fire risk.
 Another guy on the list, an archivist at the LoC, urged me to retain the
originals.
 He'd seen too many losses of valuable data through inept media transfers.

 I remain astonished at the longevity of the 78 r.p.m. shellac record.
They're
 hardly robust as individual items, but they were pressed en masse, and it
seems that
 (thinking of obscure blues records) if the record company pressed over 1000

 copies of a record, then there is still at least one out there extant &
playable.
  Data redundancy.


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