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Path: utzoo!utgpu!water!watnot!watmath!clyde!cbatt!ihnp4!homxb!houxm!mhuxt!mhuxm!mhuxo!ulysses!faline!thumper!tr
From: tr@thumper.UUCP
Newsgroups: comp.sys.ibm.pc
Subject: Re: mapmem.com
Message-ID: <619@thumper.UUCP>
Date: Mon, 6-Apr-87 07:56:39 EST
Article-I.D.: thumper.619
Posted: Mon Apr  6 07:56:39 1987
Date-Received: Sat, 11-Apr-87 03:44:03 EST
References: <262@uhmanoa.UUCP>
Distribution: na
Organization: Bell Communications Research
Lines: 32
Keywords: MAPMEM, MARK, RELEASE

In article <262@uhmanoa.UUCP>, sandy@uhmanoa.UUCP writes:
> 
> [...]
> 	When trying to run MAPMEM I get a 'Data Read Error on Drive C'.
> Does anyone know what this means with respect to this program.
> 	The funny thing is that it sometimes works and other does not.
> The results of when it does work are really nice to have. I am pretty
> sure the problem is not with the drive itself. It is only a couple
> of months old and appears to work fine with everything else I have
> which entails about 12Meg of files.
> [...]
> --Sandy Phipps--

I am quite sure it really is a disk error.  DOS is having trouble
reading the program because it is located exactly where there is a bad
sector.  If you have Norton Utilities, use DiskTest which will mark
the sector as bad.  Before you do, make a copy of the file and delete
the file.  If you can't make a copy from your hard disk, it may be as
good as lost.  If you don't have Norton Utilities, use the RECOVER
command that comes with DOS.  Type "recover mapmem.com" which will
truncate the file, rendering it useless, while marking the bad sector
as unusable.

Just because your disk is new does not make bad sectors unlikely.  Maybe
the bad sector table was never properly marked, or maybe you just
developed a new bad sector, which is rare but not amazingly uncommon.

-- 
Tom Reingold
INTERNET:       tr@bellcore.com
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