Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: $Revision: 1.6.2.16 $; site ISM780B.UUCP
Path: utzoo!watmath!clyde!cbosgd!ihnp4!houxm!whuxl!whuxlm!akgua!gatech!seismo!lll-crg!lll-lcc!vecpyr!amd!pesnta!pyramid!decwrl!decvax!cca!ISM780B!tim
From: tim@ISM780B.UUCP
Newsgroups: net.micro.amiga
Subject: Re: Re:  SSDD disk = DSDD disk !
Message-ID: <39700004@ISM780B.UUCP>
Date: Thu, 14-Nov-85 12:25:00 EST
Article-I.D.: ISM780B.39700004
Posted: Thu Nov 14 12:25:00 1985
Date-Received: Wed, 20-Nov-85 07:49:57 EST
References: <394@caip.UUCP>
Lines: 23
Nf-ID: #R:caip:-39400:ISM780B:39700004:000:1277
Nf-From: ISM780B!tim    Nov 14 12:25:00 1985


>> Are all SSDDs the same as DSDDs excepting the label, or is this just a
>> feature of maxell?  One way or the other, are SSDDs normally cheaper or

> With 5.25" and 8" diskettes, SS disks are often DS disks that failed to
> verify on the opposite sides. Many 3.5" diskettes are the same way, but
> beware! Some SS 3.5" diskettes are not even polished on the back and you
> can damage your drives just by using them, whether or not they work DS.

I have heard that at least some disk do not have a seperate process for
making SS and DS disks.  That is, all disks are made DS.  Those that are
bad on both sides are rejected.  Those that are bad on one side become SS.
And the rest are sold as DS.

Some early 3.5" SS disks were supposedly actually ones that had passed on
both sides, so were really DS.  But the demand for DS disks was low, while
the demand for SS disks was higher than the actual SS, so some manufatures
sold SS disks that were actually perfectly good DS disks.

The bottom line?  You may get lucky using a SS as a DS disk, but it may be
the case that one side is marginal, and will be likely to fail soon.  Or,
as Peter says, you may just trash your drive if you are not careful.  You
are probably better off just buying disks that claim to be double sided.