Date   : Sat, 13 Nov 1982 14:59:00-EST
From   : Keith Petersen <W8SDZ@Mit-Mc>
Subject: when to log-in a new disk?

Put your density check routine in the CBIOS "HOME" routine.  CP/M does
a "HOME" (usually translated to a track 0 seek or "restore") before
doing directory operations, in order to assure proper re-calibration
of the drive.  If this works for you, please tell Info-Cpm.  If not,
tell me.  Thanks.
--Keith