Floppy disk media density/format mismatching

From: Ian Primus <ian_primus_at_yahoo.com>
Date: Tue Dec 31 22:44:00 2002

I was hunting around on ebay, and I found this quite by accident.
http://cgi.ebay.com/ws/
eBayISAPI.dll?ViewItem&category=4610&item=2085201851 It is an
auction for some reproduction Apple Lisa system disks. The guy
certainly did a good job copying the labels, but I really wonder about
the data on them - the disks he used are high density floppies. I
always thought that if you format a high density floppy for low density
that it will work for a while, then the data will become corrupt due to
the different magnetic properties of the media. I know that this is
true on 5 1/4 media, I used a high density disk in a Commodore 64 by
mistake once, and it didn't work very well. I also remember back when
high density 3 1/2" floppies were pretty expensive, I used to buy low
density disks and drill holes in the other corner so I could reformat
them for high density. It worked just fine, and those disks still work.
Can anyone shed any light on the subject?

Ian Primus
ian_primus_at_yahoo.com
Received on Tue Dec 31 2002 - 22:44:00 GMT

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