Re: IIgs floppies??

["John Van Winkle" <appleiieman@charter.net>]

You are correct.  I agree with your statement.


"Eric Smith" <eric-no-spam-for-me@brouhaha.com> wrote in message
qhfz2hu93o.fsf@ruckus.brouhaha.com">news:qhfz2hu93o.fsf@ruckus.brouhaha.com...
> "John Van Winkle" <appleiieman@charter.net> writes:
> > They will work but since the media inside the 1.44 meg floppy takes
twice
> > the magnetic strength to magnetize it, the data may not last as long.
>
> It doesn't take anywhere near twice.  The coercivity of 3.5" DD disks
> is 650 oersteds, and 3.5" HD is 720 oersteds.  Given how much
manufacturing
> variation there is, they're probably interchangeable in either direction,
> except that some DD drives have a disk-inserted sensor where the HD
> recognition sensor is on HD drives, thus won't recognize an HD disk at all
> (can be worked around with tape).
>
> That's not to say that I actually recommend using the "wrong" media, but
> you can certainly get away with it in a pinch.
>
> You may have been thinking about 5.25" disks, for which the DD and HD
> coercivities were 290 and 660 oersteds, respectively.  Those are
> *definitely* not interchangeable.
>
> Eric