CompuPro floppy controller differences

[Allison]

>
>Subject: RE: CompuPro floppy controller differences
>   From: "Chuck Guzis" <cclist at sydex.com>
>   Date: Mon, 18 Sep 2006 09:22:52 -0700
>     To: cctalk at classiccmp.org
>
>On 9/18/2006 at 8:06 AM Allison wrote:
>
>>3.5" 720k
>
>There were two "standard" versions of the 720K 3.5 format, differing in the
>cluster and FAT size.  One was the definition put out by IBM sometime
>around MS-DOS 2.1 and the other, by Microsoft in MS-DOS 4.00 (which was an
>abomination).
>
>So, you haven't used 3.5" 1.3MB DOS diskettes?  (2x8x1024)?  Many USB
>floppies and Superdrives support the DOS-V format under Windows 2K and XP;
>though FORMAT doesn't appear to understand how to initializae blanks.
>
>...and let's not forget the short-lived "special" distribution formats from
>IBM and Microsoft that got around 1.8MB per 3.5" floppy by using more
>sectors per track+interleave+skew(MS DMF)  or differing sector sizes (IBM
>XDF).  I suppose you could call those "standard", since they were
>officially-endorsed formats.
>

Just goes to prove PCs and what standards.  ;)

They were all over the map just like all the other boxen on storage.

Allison