Date   : Mon, 27 Jun 1983 06:27:00 EDT
From   : Stephen C. Hill <STEVEH@mit-mc>
Subject: Disk Parameters

   Does anyone know how a piece of software, running on an
unknown machine (obviously CP/M), can determine if it is facing
an 80 Track SSDD disk or a 40 Track DSDD disk?  I can't see
anywhere that CP/M can make a distinction.  I'm hoping I am wrong.