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Posted by Richard Crowley on 02/13/07 04:20
"Fred" wrote ...
> I guess we are still learning what the lifetime
> might be for thses tapes. but if it's valuable stuff,
> now might be a good time to transfer to new media
> while keeping the old as an experiment to see how
> long the media lasts.
We have analog tapes >50 years old that can still
be played as good as when they were recorded.
(Or maybe even better with modern equipment.)
I have no doubt that my digital mag tape will well
outlive me. I have ZERO expectation that ANY of
my DVDRs will outlive me.
> From what I've heard, they don't just get gradually
> weaker, there is a point where they just don't play
> anymore.
They may gradually "get weaker" (likely not as fast as
you think). But whether they "just don't play anymore"
is function of many things. Tapes/discs that have been
explicitly erased can be recovered by lab techniques as
used by the CIA, NSA, etc. :-)
> There was a guy at our club that bought a new
> camera and used it for half a project when it started
> giving him trouble. He sent iit in for repairs and they
> fixed it well enough. They just needed to re-align the
> heads, of course the 75 hours he had already shot
> was unreadable on any machine after that. Had to
> be done over.
Or he could have had them align the camera to the bad
tapes, dubbed/captured them, and then had the camera
re-aligned properly. No need to do anything over.
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