Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!elroy!orion.cf.uci.edu!uci-ics!ucla-cs!sm.unisys.com!csun!csuna!abcscnge
From: abcscnge@csuna.csun.edu (Scott "The Pseudo-Hacker" Neugroschl)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Writing 360kb Disks from 1.2 Mb Drive
Message-ID: <1852@csuna.csun.edu>
Date: 23 Mar 89 06:36:17 GMT
References: <3789@peora.ccur.com> <3787@stiatl.UUCP> <3524@uhccux.uhcc.hawaii.edu>
Reply-To: abcscnge@csuna.csun.edu (Scott Neugroschl)
Distribution: na
Organization: CSU Northridge
Lines: 37

In article <3524@uhccux.uhcc.hawaii.edu> yuan@uhccux.UUCP (Yuan 'Hacker' Chang) writes:
]-In article <3789@peora.ccur.com> joel@peora.UUCP writes:
]->I would still like to able to write disks that a 360 kb drive
]->can read...............
]
]In article <3787@stiatl.UUCP> todd@stiatl.UUCP (Todd Merriman) replies:
]-
]-Format the 360k disk on the 1.2M drive using the /4 switch.  You may 
]-then write to that disk on the 1.2M drive, and it can be read on a 360k drive.
]-Do not write that disk on the 360k drive (this includes deleting files).
]-The 1.2M drive should be able to read a 360k disk formatted on the 360k
]-drive with no problems.
]
]	Better yet: if you know for sure that the disk has been written to
]on a 360K drive, copy the content of the disk to another disk (say, a
]harddisk), erase the disk completely (using a magnet or a bulk-eraser),
]format with the /4 switch, and copy the content right back.  Works every
]time...

I think you guys got it backwards... The original poster wanted a way
to write 360's on a 1.2M drive so that a standard 360K drive could read
it.  The 1.2M drive's heads write a much narrower track, or some such
so sometimes 360's written on a 1.2M drive can ONLY be read by a 1.2M
drive.  A software package (CPYAT2PC) claims to have solved this problem.

Two questions:

	1) Does said software package work

	2) If it does, why doesn't IBM/MS use it in the driver?


-- 
Scott "The Pseudo-Hacker" Neugroschl
UUCP:  ...!sm.unisys.com!csun!csuna.csun.edu!abcscnge
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