Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!hplabs!hp-sdd!megatek!eta!hollen
From: hollen@eta.megatek.uucp (Dion Hollenbeck)
Newsgroups: comp.sys.ibm.pc
Subject: Re: 720 kB  1/4" floppies?
Message-ID: <550@megatek.UUCP>
Date: 22 May 89 14:24:15 GMT
References: <3649@penet.UUCP>
Sender: news@megatek.UUCP
Lines: 23

From article <3649@penet.UUCP>, by thomas@penet.UUCP (Thomas Aschan):
> Does anybody have experience
> with reading & writing 720 kB 5 1/4"
> floppies?
> 
Yes, I have Shugart 565 5 1/4" drives which are 720kb.  I use them both
as standard floppies and also with Fastback for backup purposes.
I have needed to put "DRIVPARM /d:2 /h:2 /t:80" (check DOS manual for
exact syntax since I am at work, not at home where the drives are) in
my config.sys for them to work, or if on an AT, use setup and tell
it that they are 3 1/2" 720kb drives.  Unless you have some strange 
format, the 720kb drives are 2 heads, 80 tracks, 9 sectors per track,
exactly the same as the 3 1/2" drives currently popular.

One caveat, DRIVPARM does not work on DOS 3.3, but will work on 3.2.
I spent lots of time figuring this one out, and I will never upgrade to
3.3 because of it.

	Dion Hollenbeck             (619) 455-5590 x2814
	Megatek Corporation, 9645 Scranton Road, San Diego, CA  92121

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