Date:	Thu, 24 Jul 1997 15:40:17 +1200
From:	Andrew McLachlan <MCLACHLA AT tui DOT lincoln DOT ac DOT nz>
Subject:	floppy-copy errors
To:	opendos AT delorie DOT com
Message-id:	<2AF28F63532@tui.lincoln.ac.nz>
Organization:	Lincoln University

Hi All

Has anyone else found errors after copying to floppy disk?  I use 
Novell DOS 7.0.15 and get errors in copying large files to floppy 
disk.  I detect the errors using COMP.  Typically, there are between 
0 and 7 errors (different bytes) per file (I use three 350kB 
test files).

I have found that if I clean boot, then the errors disappear.  
Adding other programs makes the errors recur.  However, after many, 
many tests I have yet to establish any logical pattern in the 
results as to which setups work and which don't.  The same problems 
occur with DR-DOS, but *much less* frequently with MS-DOS (i.e., 
only 1 file mis-copied out of 135).  

The system is an AMD K5-PR133 on an ASUS TP24 motherboard (onboard 
i/o).  There are absolutely no problems on my 486 system running the 
same Novell DOS version.

I have tried swapping the floppy disk drive (and cable) from my 
working 486 system, but this made no difference.  The remaining 
possibilities are something to do with DR/NW/OpenDOS, the 
motherboard, or the cpu.  Any thoughts and opinions would be 
appreciated.

Cheers

Andrew McLachlan,  PhD student.             <MCLACHLA AT lincoln DOT ac DOT nz>
Dept of Entomology & Animal Ecology, P.O. Box 84, Lincoln University, 
Canterbury, New Zealand.  ph. +64 3 325-2811, fax. +64 3 325-3844.

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