formatting MFM drives on a IBM PC

Mike Stein mhs.stein at
Thu Sep 28 12:36:36 CDT 2017

----- Original Message ----- 
From: "Guy Sotomayor Jr via cctalk" <cctalk at>
Sent: Thursday, September 28, 2017 12:30 PM
Subject: Re: formatting MFM drives on a IBM PC

> Generally drives now-a-days will read an entire track at a time. 
>TTFN - Guy
Cromemco's STDC ST412 MFM controller also read a whole track at a time way back when; quite an improvement over the IMI controllers they'd used previously.

Speaking of IMI drives, some of the 5" versions (as opposed to the aforementioned 8" 7710) were available in both ST412 and 34-pin IMI interface versions, and conversion kits were even available.


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