[unisog] Wiping hard drives before computer transfer

Carl Miller mill1010 at uidaho.edu
Fri Nov 25 21:22:36 GMT 2005

In regard to
"Gutmann explains that when a 1 bit is written over a zero bit, the
 effect is closer to obtaining a .95 when a zero is overwritten with a
 and a 1.05 when a one is overwritten with a zero"."
Actually, he compared over-writing both a 0 and 1 with a 1, not as you
"a 1.05 when a one is overwritten with a zero".
He desribed it all in terms of over-writing with a 1.
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