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Are a few bad sectors normal? [message #68530] Tue, 21 May 2013 01:14 Go to next message
micom is currently offline  micom
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Message-ID: <723@houxf.UUCP>
Date: Wed, 30-May-84 21:56:19 EDT
Article-I.D.: houxf.723
Posted: Wed May 30 21:56:19 1984
Date-Received: Sat, 2-Jun-84 08:07:52 EDT
Organization: AT&T Bell Labs, Holmdel NJ
Lines: 13

We recently bought a few boxes of Maxell double sided double density
floppies and found a few bad sectors on several of them when formatted 
under PC-DOS.  Is this to be expected?  Does this indicate anything
about the rest of the diskette (e.g., is it likely to develop more bad 
sectors after being used)?  Do manufacturers and/or retailers make any
sort of guarantees about the diskettes at least as far as being OK when
the box is opened?

				Danny Sykora
				AT&T Bell Labs (Holmdel)
				(201)949-7358
				houxf!micom
Re: Are a few bad sectors normal? [message #68546 is a reply to message #68530] Tue, 21 May 2013 01:14 Go to previous messageGo to next message
dob is currently offline  dob
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Message-ID: <521@ihuxj.UUCP>
Date: Thu, 31-May-84 09:05:01 EDT
Article-I.D.: ihuxj.521
Posted: Thu May 31 09:05:01 1984
Date-Received: Sat, 2-Jun-84 10:42:22 EDT
References: <723@houxf.UUCP>
Organization: AT&T Bell Labs, Naperville, IL
Lines: 13

A few bad sectors on a floppy diskette is NOT acceptable. You only
have 360K bytes on a double-sided disk. Take them back and get another
brand (or different lot of the same brand). They should be guaranteed.

-- 
		
			Daniel M. O'Brien
			AT&T Bell Laboratories
			IH 4A-258
			Naperville, IL 60566
		
			....!ihuxj!dob
		
Re: Are a few bad sectors normal? [message #70313 is a reply to message #68530] Thu, 23 May 2013 21:28 Go to previous message
gary is currently offline  gary
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Message-ID: <2039@mit-eddie.UUCP>
Date: Mon, 4-Jun-84 23:37:43 EDT
Article-I.D.: mit-eddi.2039
Posted: Mon Jun  4 23:37:43 1984
Date-Received: Wed, 6-Jun-84 02:48:51 EDT
References: <723@houxf.UUCP>
Organization: MIT, Cambridge, MA
Lines: 18

-

A few bad sectors on floppy disks are certainly NOT normal.  I shun
any manufacturer whose diskettes have ANY bad sectors.

Which is why I'm surprised that you had problems with Maxell diskettes.
I've used them for years and rarely have any problems.  Anyway, just
send them back and Maxell will replace them.  They are warranted for 
life.

A hard disk is another story.  Usually a hard disk will come with some bad
sectors (which your OS will take care of).  You should not continue to find
bad sectors after formatting for the first time, though.  If you do, you
should have your disk serviced.

	Gary Samad
	{decvax!genrad,ihnp4}!mit-eddie!gary
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