Re: Did Commodore cheat with the quad density floppies?

----- Original Message ----- 
From: "Gerrit Heitsch" <gerrit@laosinh.s.bawue.de>
To: <cbm-hackers@musoftware.de>
Sent: Thursday, January 03, 2019 9:12 AM
Subject: Re: Did Commodore cheat with the quad density floppies?


>> Afaik the 8050/8250/1001 drives are supposed to use "QD" disks, which
>> seems to be a format that's supposed to handle a higher density than DD.
> 
> the (german) user manual that came with my 8050 back then mentioned 
> 'single density' as the disks required. Not that I ever tried that, 
> always used DD.
> 
>  Gerrit
> 

The Commodore Disk System User Reference Guide says:

Any 'soft-sector' single-density or double-density certified diskette will work well with Commodore disk units. However, for the 8050 and 8250 disk units, double-density diskettes are recommended.