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The Tuesday 2007-02-20 at 08:59 +0100, jdd wrote:
> > I would have to find a source closer to me than that.
>
> don't worry, the quality may have fallen as soon as the test was known :-)
X-)
> and who will be here in 100 years to know if Kodal ly or not? whow cares?
Paper...
> the only backup reliable is redundency. Think your house can get fire or water
> flood. Spread your valuable data...
Even backing up two different sets of dvds is no guarantee. A dvd can
develop a failure in one sector, the second copy in another sector. Would
there be a way to generate a correct copy from both?
The thing is, we need software that generates reliable backups using
unreliable media. This was done in the past.
For instance, sectors would have redundancy in another sector of the same
disk, spread around, so that a read error in a region of the disk is not
fatal.
I read about a software that created a redundancy set for a dvd, but needs
to be stored somewhere else. If the dvd develops errors, the data can be
recovered using that software and the error prevention set for that dvd.
Nice idea, but cumbersome... that data should be integrated inside the
same dvd.
- --
Cheers,
Carlos E. R.
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