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Re: floppy disk question

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Mark Lemmert wrote:
> 
> Based on my online research of floppy disk schematics it sure looks to me
> like any DS/DD disk should be able to be used as a flippie disk in an
> Apple
> II computer, but before I buy a large quantity, I was wondering if anybody
> can over a perspective on this?
> 

This is a topic that can be made as simple or as complicated as we want to
make it. I'll skip technical features of the Disk II drive relative to
single-sided vs double-sided, and will leave that to others, but I'll say
this:

I've read the "historical" discussions on flippy disks on Usenet from the
80s and 90s and the one interesting point that was brought up a few times is
that when you physically flip a disk, suddenly the magnetic media is
rotating in the opposite direction. If there's dust buildup in the felt
padding/liner inside the plastic sleeve, suddenly the media is dragging
*against* the dust instead of *with* the dust.

The point here being that the effects of this reversal may be something that
wears out the recording surface faster, such as by digging a nice gouge in
the media.

My own personal experience is that the best way to put a nice gouge on the
disk surface is by using the disk in a drive that has a dirty head. I've got
a lot of disks now 30 years old, nearly all flippy, and haven't had problems
that I believe were related to flipping them.

-- 
]DF$
The Marina IP stack for Apple II--
http://marina.a2hq.com/

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Thread

floppy disk question Mark Lemmert <mark.lemmert@gmail.com> - 2017-02-02 14:09 -0800
  Re: floppy disk question Michael J. Mahon <mjmahon@aol.com> - 2017-02-02 16:34 -0600
  Re: floppy disk question D Finnigan <dog_cow@macgui.com> - 2017-02-02 22:39 +0000
    Re: floppy disk question Michael J. Mahon <mjmahon@aol.com> - 2017-02-03 12:17 -0600
  Re: floppy disk question gids.rs@sasktel.net - 2017-02-02 17:22 -0800
    Re: floppy disk question qkumba <peter.ferrie@gmail.com> - 2017-02-03 10:17 -0800
      Re: floppy disk question Mark Lemmert <mark.lemmert@gmail.com> - 2017-02-03 13:24 -0800
  Re: floppy disk question roger.shimada@gmail.com - 2017-02-02 18:33 -0800
    Re: floppy disk question Jurai <Jurai@WhereTheHellAmI.???> - 2017-02-11 15:11 -0700
      Re: floppy disk question Leeland Heins <leelandheins@gmail.com> - 2017-03-08 15:38 -0800
    Re: floppy disk question Leeland Heins <leelandheins@gmail.com> - 2017-03-08 15:34 -0800
      Re: floppy disk question roger.shimada@gmail.com - 2017-03-08 19:44 -0800
  Re: floppy disk question Mark Lemmert <mark.lemmert@gmail.com> - 2017-02-03 13:25 -0800
  Re: floppy disk question laseractiveguy@gmail.com - 2017-02-11 18:03 -0800
    Re: floppy disk question 6502workshop@gmail.com - 2017-02-12 15:44 -0800
    Re: floppy disk question Mark Lemmert <mark.lemmert@gmail.com> - 2017-02-12 17:34 -0800

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