Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!batcomputer!munnari.oz.au!manuel!csis!ken
From: ken@csis.dit.csiro.au (Ken Yap)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Diffs between DD & HD disks
Message-ID: <1991Apr11.023417.14345@csis.dit.csiro.au>
Date: 11 Apr 91 02:34:17 GMT
References: <1991Apr9.075828.2135@ibmpcug.co.uk> <1991Apr10.075541.638@kessner.denver.co.us>
Organization: CSIRO Division of Information Technology
Lines: 13

[Guys, please edit the newsgroup line]

Formatting SS to DS is safe enough. The material is the same in both
cases. Certified doesn't mean every disk is tested, just a sample.  It
probably also means if you find a bad one they'll exchange it for you.
In the process of formatting you are doing a verify anyway.  I have
lots of SS disks written on both sides.

However this is moot since I don't know of too many SS drives these days.
I'm not even sure you can buy SS disks cheaper than DS, if at all.

DD and HD should not be mixed since as pointed out several times, the
magnetic material is different.