Re: Frustrated: Can't get DOS anywhere

[Don Bruder <dakidd@sonic.net>]

In article <pan.2004.06.24.18.43.39.60605@alirossdotco.uk>,
 Alistair J Ross <mailat@alirossdotco.uk> wrote:

<snip>

> A known working 80 Track BBC Double Density Diskette An older IBM
> formatted (but should be good) Diskette
> 
> These disks are both Double Sided, Double Density, which I believe to be
> the correct format for the Disk ][ drives. I also had another Disk ][
> interface card which I swapped into the apple to no avail.
> 
> Does anyone have any ideas why this may be happening?

Double-density disks would be your culprit, it looks like. Many folks 
have made mention of the fact that DD disks need a bit more magnetic 
"oomph" to write to them than what the Apple drives (originally designed 
for single-density media) can put out. The difference is the magnetic 
media used on single versus double-density disks. The coating on a 
single-density disk is more "susceptible" to being (de)magnetized than 
that on a double-density disk.

-- 
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