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).
Although one thing I've found with many years experience with PS/2's is
that 1.44MB drives in PS/2's reliably can treat 720kB floppies as 1.44MB
floppies without any trouble whatsoever. I mean, without covering the
hole or anything like that.
Peace... Sridhar