Formatting cheap 3-1/2" floppy

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#7125

From: Dave Rabinowitz
Date: Sat, 26 Jan 1991 01:56

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I purchased some inexpensive 3-1/2" DSDD floppy disks and when I try to format
them on a PC I get the message:

   Invalid media or Track 0 bad - disk unusable
   Format failure

The same thing happens when I try to format a disk which has been used in a
non-IBM system such as a Macintosh or a computerized theater lighting system.
Is there any software available which can format a disk in this condition?  
I tried PCFORMAT and got the same general message.  The disks work just fine
in a Macintosh and the theater lighting system after failing on a PC.

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From: daver@ECE.ORST.EDU (Dave Rabinowitz)
Newsgroups: comp.sys.ibm.pc.misc
Subject: Formatting cheap 3-1/2" floppy
Summary: Track 0 bad - disk unusable
Message-ID: <1991Jan26.015628.15182@usenet@scion.CS.ORST.EDU>
Date: 26 Jan 91 01:56:28 GMT
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Organization: Oregon State University -- Electrical & Computer Engineering
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