Date   : Mon, 21 Oct 1991 13:01:13 GMT
From   : agate!spool.mu.edu!samsung!noose.ecn.purdue.edu!mentor.cc.purdue.edu!gauss.math.purdue.edu!wilker@ucbvax.Berkeley.EDU (Clarence Wilkerson)
Subject: Re: Media-Master

The documentation for 22DISK describes an eay hardware modification
to standard PC floppy controller boards to enable single density 
READING. It uses un-used extra logic gates on the board to detect
MFS/FM off the previously unconnected pin on the 765 chip.
   I've tried the mod. It worked to read Heath SD softsectored
disks.
   The documentation mentions that WRITING would require
timing compensation which is not accomplished by the easy mod.
   I have not tried any 8" drives on the PC.
Clarence Wilkerson