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echo: classic_computer
to: Mike Luther
from: Jasen Betts
date: 2004-03-13 08:48:30
subject: Reading H/Zenith 729K disks

Hi Mike.

11-Mar-04 14:43:08, Mike Luther wrote to All


 ML> Does anyone here have a copy of a utility that will run in MS-DOS
 ML> or in a DOS-VDM in OS/2 which will read the older Heath MS-DOS
 ML> 5-1/4" floppy disks that were formatted to 729K?  That's the ones
 ML> which were actually 360K with the factory supplied hole
 ML> re-inforcement.  Heath embarked on a massive program to double
 ML> density format and write these disks in the 1.2MB 5-1/4" floppy
 ML> disk drives way back when.  I used this format with Z-120's for
 ML> years

driver.sys may be able to handle them just tell it 80 tracks 9 sectors
two sides. (and use the new drive-letter it generates)

otherwise, try 800KS.zip

 ML> If you have two of the drives or a hard disk and one ..  you can
 ML> copy them to the later 5-1/4" 1.2 MB density flopppy disks or the
 ML> later yet 3-1/2" 1.44/2.88 MB floppies.

even with a single floppy drive that's possible.
dos allows floppy drives to have more than one drive letter so that you can
copy disks with a single drive.  (driver.sys can help here too)

 ML> I have a large stack of
 ML> these I want to move to 3-1/2" diskettes or archives

Good luck! floppy disks become unreliable after about 10 years here.

 ML> I used to have a copy of UNIFORM which is a DOS device driver that
 ML> you could over-install in CONFIG.SYS in MS-DOS which I think would
 ML> do this.  Someone else in the UseNet forum has suggested another
 ML> executable that would run under DOS to do this

 ML> Anyone here have a copy of such a utility?

Roy J Tellason's system "TANSTAFFL" (1:270/615) has quite a few for freq...

One of the following may help. (he has a few more too)

800KS.ZIP       8806 07-08-88  [    ] Format 360k disk to 800k on AT, w/MASM
FDFORM18.ZIP  102290 07-21-91  [   3] Floppy formatter - *very* flexible!
FF231.ZIP      95318 11-14-96  [   2] FreeForm- The Ultimate Floppy Disk
MAXI19.ZIP     67466 11-14-96  [    ] MAXIForm- The Original Floppy Disk
UFORMT21.ZIP  128769 08-27-94  [    ] Fast VGA disk formatter with GUI

if it's some sort of CP/M format you could try

22DSK142.zip  and  READCPM.ZIP

from the same source.


 -=> Bye <=-

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