Subj : Re: floppy disks
To   : Phigan
From : boraxman
Date : Thu May 01 2025 10:29:28

-=> Phigan wrote to boraxman <=-

 Ph>   Re: Re: floppy disks
 Ph>   By: boraxman to Phigan on Wed Apr 30 2025 01:11 am

 > Most Commodore disk drives took DD disks.  They were single sided drives.
 > You could of course, use a Double Sided disk anyway, just one side would go

 Ph> Oh nice, then the disks I tried that didn't work for me must have been
 Ph> high density.

 Ph> So yeah, was there more than one person that might have some extra DD
 Ph> floppies? :) --- SBBSecho 3.24-Linux

I know for 3.5" discs, there was a small difference in the thickness of the
actual disk.  Higher density disks had I think a thinner magnetic coating, as
it had to be more sensitive.  Even DD discs written to in HD drives, could have
problems if read on a DD drive subsequently.  Im guessing subtle differences in
the sttrenght and size of the magnetic field, and in the responsiveness of the
magnetic layer made HD discs unusuable in DD drives.

.... BoraxMan
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