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From: rtf1@cbnewse.ATT.COM (richard.t.ferber)
Newsgroups: comp.sys.ibm.pc
Subject: Copy protect disk
Keywords: copy protect
Message-ID: <673@cbnewse.ATT.COM>
Date: 22 Aug 89 20:30:10 GMT
Distribution: usa
Organization: AT&T Bell Laboratories
Lines: 16


I am trying to come up with a way to copy protect a floppy disk so it can't
be copied by either diskcopy or copy *.*.

I've been told that the best way to do this is to have BIOS write to the
disk at a different density than what is standard.  This should make the disk
unreadable by the copy commands. Will this also make the disk completely 
unreadable? Is this the correct approach or is there a simpler method?
I am unfamiliar with the DOS programming environment so any info will be
appreciated.

Please post or e-mail.


					Rick Ferber
					AT&T Bell Labs