It doesn't matter whether the diskette is a 1.2 MB one or a 360K type, but
the drive which wrote it make a great deal of difference. 1.2 MB drives can
read 360k diskettes just fine, but you can't expect a drive designed to
operate on half the track width (twice the density) and even more bit
density, to erase the writing of a 48 TPI 360K drive properly. It works OK
the first time, and less well the second ... and so on until it fails
because the residue left behind by the 48tpi drive generates too much noise
for the 96 tpi drive to discriminate between noise and signal.
Dick
----- Original Message -----
From: Tony Duell <ard_at_p850ug1.demon.co.uk>
To: <classiccmp_at_classiccmp.org>
Sent: Sunday, March 26, 2000 10:08 AM
Subject: Re: Parallel port hard drives?
> >
> > >Are you using a 1.2MB floppy drive to write a 360K floppy disk?
> >
> > Yes, but I used the drive (1.2Mb) to format it to 360K.
>
> Did you start with a bulk-erased (i.e. with a degausser) disk? And is it
> a real 360K disk (and not a 1.2Mbyte one)?
>
> -tony
>
Received on Sun Mar 26 2000 - 11:33:41 BST