Re: Good source for "new" 5.25 and 3.5 inch floppy disks?

[winston19842005 <bjjlyates@bellsouth.net>]

On 9/21/07 10:10 PM, in article
paednVf7lI465GnbnZ2dnUVZ_ramnZ2d@giganews.com, "Steven Hirsch"
<snhirsch@gmail.com> wrote:

> winston19842005 wrote:
> 
>>>> Steven Hirsch wrote:
> 
>>> So, my statement about DD and HD 3.5" media having different coercivity was
>>> correct?  That's what I thought.
>>> 
>> No, coercivity was a 5.25" HD thing.
> 
> Actually, coercivity is a physics thing.  It's a measurable property of
> magnetic materials.  Now, whether the various types of 3.5" media differ to
> any extent and whether those differences are significant, that's another
> issue.
> 
> Write current is precisely the characteristic that one would adjust to best
> utilize media of a specific coercivity, since the magnetic field at the head
> is proportional to the current.
> 
> I'll have to go off and digest this stuff some more.

The Wikipedia entry didn't seem to mention coercivity at all... And I know
for sure that was a difference in 5.25", but 3.5" is the question.