720k floppy

From: Doc <doc_at_mdrconsult.com>
Date: Sun Dec 23 23:05:16 2001

On Sun, 23 Dec 2001, Michael Holley wrote:

> The 1.44M diskettes have a different oxide than the 720k diskettes. The 720k
> disks have one hole for write protect while the 1.44M has a second hole. The
> new drives sense the hole and adjust the write current for the different
> oxide. You can cover the extra hole on the 1.44M disks and formatted it as
> 720k but this will cause problems (I have been told).

I used to do that for my old Mac SE - cover the hole on a 1.44m floppy
to make it a 720k - and it works ok. It is sort of a one-way deal,
though. I could never get them to format back to 1.44. I also have no
idea what it was doing to the drive. Nothing, I think, as my son still
has that SE.

        Doc
Received on Sun Dec 23 2001 - 23:05:16 GMT