From: "Ben Davis" <ben AT vjpoole DOT freeserve DOT co DOT uk>
Newsgroups: comp.games.development.programming.misc,comp.os.msdos.djgpp
Subject: Disk Serial Numbers
Date: Wed, 27 Oct 1999 20:52:13 +0100
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To: djgpp AT Delorie DOT com
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Reply-To: djgpp AT delorie DOT com

This may be slightly off topic, but please bear with me...

I have noticed that some floppy disks have serial numbers; the serial number
appears when I type 'dir/w'. Can someone confirm that the serial number of a
floppy disk cannot be changed through software (if at all), and explain how
to write a program which reads it? (After all, 'dir' does it, so it must be
possible.)
If there is a DJGPP function to do this, I would like to know. Otherwise I
will use whatever low-level DOS Interrupts or whatever are necessary.

Ben Davis