Path: utzoo!mnetor!uunet!seismo!sundc!pitstop!sun!decwrl!hplabs!hpda!hpcupt1!hpcuhb!hpindda!mintz
From: mintz@hpindda.HP.COM (Ken Mintz)
Newsgroups: comp.sys.ibm.pc
Subject: Re: DOS 3.3 feature vaporware?
Message-ID: <4330071@hpindda.HP.COM>
Date: 30 Apr 88 13:04:17 GMT
References: <Apr.12.12.26.22.1988.14955@athos.rutgers.edu>
Organization: HP Technical Networks, Cupertino, Calif.
Lines: 11

> In the "old days" of the AT, you could FORMAT a 360K disk in a 1.2 MB
> drive with a "FORMAT A: /4"....

  But is that reliable?  I've been told that writing to a 360K disk on a
  1.2M drive is not supported.  The explanation was as follows:  the HD disk
  has thinner metallic surfaces, so the 1.2M write heads don't put out as
  strong a signal as do the 360K heads.  Of course, because the 360K heads
  are N times stronger than needed, the 1.2M heads will work X% of the time.
  (Anyone have some idea what "X" is?)

Ken Mintz