[Coco] 720k 3.5" floppies

Gene Heskett gene.heskett at verizon.net
Sun Nov 4 12:36:41 EST 2007

On Sunday 04 November 2007, Bruce W. Calkins wrote:
>----- Original Message -----
>From: "Derek" <dml_68 at yahoo.com>
>> If you put something over the hole on the upper left side
>> of the 1.44 MB floppy disk you will have better luck.
>That is precisely what I did.  1.44M media is different than 720k media.
It (the HD diskette coating) is about twice as hard magneticly, and the 720 
drives don't have enough write power to fully magnetize the coating.  It may 
be something that could be adjusted, if one had the actual schematics, 
something the chinese aren't supplying with anything newer than about 15 
years ago.

Often you get a disk you can read just fine when its made, but two weeks later 
its faded back into the noise.

>Bruce W.
>Coco mailing list
>Coco at maltedmedia.com

Cheers, Gene
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