Path: utzoo!attcan!uunet!cs.utexas.edu!sun-barr!apple!agate!saturn!helios!lance
From: lance@helios (Lance Bresee)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Problems with low-density diskettes on high-density drives
Message-ID: <8403@saturn.ucsc.edu>
Date: 18 Jul 89 17:12:28 GMT
References: <172@nisca.ircc.ohio-state.edu>
Sender: usenet@saturn.ucsc.edu
Reply-To: lance@helios.ucsc.edu (Lance Bresee)
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Organization: University of California, Santa Cruz;  UCO/Lick Observatory
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I have heard that the write head current is lower on high density drives.
The tracs recorded by these high density heads, though spaced as for
low density drives, are narrower, so present less current to the
low density drive read head, sometimes causing problems.  I have 
never had any difficulty reading from low density drives files that
have been written with a high density drive when the disk has been
FORMATTED BY the low density drive first.