[Coco] Re Floppy Disk Density

[Clubbbs at aol.com]

Message: 15
Date: Fri, 23 Aug 2013 14:33:09 -0500
From: Brian  Goers <briang0671 at sbcglobal.net>
Subject: [Coco] Floppy Disk  Density
To: CoCoList for Color Computer Enthusiasts  <coco at maltedmedia.com>
Message-ID:  <5217B8F5.8070709 at sbcglobal.net>
Content-Type: text/plain;  charset=ISO-8859-1; format=flowed

How can you tell the a DD disk from a  HD disk?
I have some disks that have a white hub ring and others that are  clear 
or black?

How can I test them?

-- 
HD disks  don't have hub rings.
Bob