On Thursday 19 January 2006 15:23, Terry King wrote:
At 12:01 PM 1/19/2006 -0600, you wrote:
Subject: deformatting floppies
I would have thought it best to take a magnet to a hd
disk before popping in a 720k drive to be formatted,
but it seems to not have any (or much) effect. Even
using a chunky rare earth magnet! Can someone explain?
<snip>
One should probably point out that trying to format HD 3.5" media (aka
1.44MB or 2.0MB) in a 720kB drive won't work reliably, no matter how
well you degauss the media. The problem lies in the coercivity of the
media (and has been discussed on this list several times in the past
couple years I've been here).
Pat
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