2.4 Megabyte Floppies

Chuck Guzis cclist at sydex.com
Fri Sep 8 16:53:27 CDT 2006


On 9/8/2006 at 5:23 PM Patrick Finnegan wrote:

>FWIW, I tried hooking one of these up to a catweasel 3 in a PC, and 
>while it could read "1.2MB" floppies just fine, I couldn't get Tim 
>Mann's catweasel utilities to recognize any MFM or other encoding on 
>the data stream that the catweasel card was reading off the 2.4MB disks 
>I've got (which are IBM 3174 microcode disks).

A Catweasel histogram of a track of one of these might shine a little light
on the recording technique used.  Could be CGR or even a flavor of RLL.

But isn't this drive on the 3174 read-only?

Cheers,
Chuck




More information about the cctech mailing list