Floppy disks again

From: Don Maslin <donm_at_cts.com>
Date: Tue Oct 12 12:36:45 1999

On Tue, 12 Oct 1999, Bill Yakowenko wrote:

> Okay, one final question before I drop this topic
> forever (or until tomorrow, whichever comes first).
>
> How is it possible that DD media could be of such
> poor quality that it can't (reliably?) do 96 TPI,
> while still being just fine at 48 TPI?

Of my own experience, I do not believe that it is. I regularly use
generic unformatted 5.25" DD disks at 96tpi without problem.

                                                 - don
 
> I mean, it is recording something like 3000 bits per
> inch along each track, right? How could that same
> media not have enough resolution to keep the bits of
> adjacent tracks separate at less than 100 per inch?
> Can somebody who believes this can happen give me a
> mental model of what is going on there? I mean, in
> terms of physics or geometry or mechanics or anything
> measurable and specific.
>
> It sounds to me like it must be the drive, and not
> the media, that limits the number of tracks to
> anything below 1500 TPI.
>
> Thanks,
> Bill.
>
>
Received on Tue Oct 12 1999 - 12:36:45 BST

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