Disk imaging with IMD - question

rich.cini at verizon.net rich.cini at verizon.net
Wed Aug 9 11:52:56 CDT 2017

It's funny -- I didn't see the original reply from Bill to this message. 

I am aware of  the track differences and I thought Dos would format it but just slam the head for the last three tracks. No such luck. It actually complains about the disk from the beginning. 

The Qume 242 is a DSDD drive in case that was asked in the original thread, and should work in this situation. 

I tried to format a disk with both IMD and NFORMAT (utility I downloaded) and neither products a disk format that DOS likes. I'm sure it's my selection of parameters more so than the program itself. 


Sent from Verizon/AOL Mobile Mail

On Wednesday, August 9, 2017, Chuck Guzis via cctalk <cctalk at classiccmp.org> wrote:

On 08/09/2017 01:41 AM, william degnan wrote:

> How about booting into dos and just formatting a disk that way? 

Go back and read what I wrote, Bill. If single-sided media is being
used, DOS formatting will fail as there is no single-sided high-density
format available.

Of course, if double-sided media is used, DOS formatting as a 1.2MB DOS
disk should work--up to track 76. Note that 8" drives are 77
track/cylinder, not 80, as the 5.25" drives are.

IMD can handle the issues quite readily, as its formatting facility will
do whatever you tell it to do.


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