Yahoo Groups archive

Disklavier

Index last updated: 2026-04-28 23:20 UTC

Message

Re: 720k dos disk format

2002-12-13 by Matthew Walworth

I know it was recently discussed on the list that Microsoft is 
abandoning the double-density format starting with Windows XP. 
There is no option in the Explorer's format window for 720k disks 
and the "/F:720" option is no longer valid for the format command. 
What I don't remember is if the workaround was discussed.

While the "format" command will no longer accept the "/F:720" 
option, it WILL still accept the specification of a 720k diskette. 
The proper command for formatting a 720k diskette in the A: drive 
is:

format a: /t:80 /n:9

this specifies 80 tracks with 9 sectors per track which is the same 
thing that the shorthand option "/F:720" does. In fact, before dos 
4.0 came along this was the ONLY way to format a double density 
diskette in a high density drive.

I hope I'm not being redundant here. I just couldn't remember if 
this ever got discussed.

Happy Holidays to all,
...matthew...

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.