Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!mailrus!ncar!tank!eecae!cps3xx!usenet
From: usenet@cps3xx.UUCP (Usenet file owner)
Newsgroups: comp.binaries.ibm.pc.d
Subject: Re: Formatting 720K disks to 1.44 Megs HELP!!
Keywords: disks, media quality
Message-ID: <5556@cps3xx.UUCP>
Date: 28 Nov 89 18:19:08 GMT
References: <1989Nov27.212809.7241@ux1.cso.uiuc.edu>
Reply-To: hendrick@frith.UUCP (Kenneth J. Hendrickson)
Organization: Michigan State University
Lines: 20

In article <1989Nov27.212809.7241@ux1.cso.uiuc.edu> gcw20877@uxa.cso.uiuc.edu (George Wang) writes:
>I wanted to do some high volume backups by using regular,
>low cost 720K generic disks and formatting them to 1.44 megs..
>However, I have not been able to format the disks at 1.44 megs..
>It keeps on giving me invalid media/bad track 0... The funny
>George Wang
>University of Illinois
>gcw20877@uxa.cso.uiuc.edu

I suggest that you don't try to use 720k disks in a 1.44M format.  The
media is probably not good enough.  The media for a 1.44M disk must be
better quality than the media for a 720k disk.  I suspect that the
people who make these disks test them, and sort them into 3 bins: HD,
DD, and rejects.  I discourage use of 720k disks at 1.44M, even if they
seem to work ok.  Your data is probably has value to you!  Don't take
unnecessary risks.

In the rare case that original ideas   Kenneth J. Hendrickson    N8DGN
are found here, I am responsible.      Owen W328, E. Lansing, MI 48825
Internet: kjh@pollux.usc.edu           UUCP: ...!uunet!pollux!kjh