[Coco] Need new disk drive...

[Bruce W. Calkins]

FWIW; there were two 1.2 Meg 5.25" floppy formats.

    Quad density using Ferrite media,
and
    High density using Cobalt media.

Source: TechRef First Edition by Thomas J. Glover and Millie M. Young 
published by Sequoia.  ISBN 1-885071-11-6

Bruce W.