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Old January 12th 18, 12:52 AM posted to alt.windows7.general
Diesel
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Char Jackson
Fri, 01 Dec 2017
16:18:56 GMT in alt.windows7.general, wrote:

On Fri, 1 Dec 2017 10:37:37 -0500, Wolf K
wrote:

On 2017-12-01 09:29, Mayayana wrote:
That's my hesitancy about USB sticks and
hard disks. Magnetic storage. I don't really
understand how it works, but it seems that
it has to be less durable than grooves in plastic.
And maybe it's susceptible to magnetic fields?
I don't know.



Cosmic rays?

The Earth's magnetic field is strong enough to degrade magnetic
storage over time. That's one reason VHS/Beta tapes become
unusable.


Mayayana mentioned grooves in plastic within the context of
backing up data to DVD. Obviously, there are no grooves... ;-)


No, but, there are small pits when the laser burns the disc. [g]

And, if air is ever allowed access to the material where your data is
actually stored, sandwiched between those two layers of plastic that
make the cd/dvd, bitrot will take hold and eat your data over time.


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