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From: paixao@ug.cs.dal.ca (Nuno M. Paixao)
Newsgroups: comp.sys.ibm.pc.hardware,comp.multimedia,comp.misc
Subject: Re: Diffs between DD & HD disks
Message-ID: <1991Apr9.141703.5134@cs.dal.ca>
Date: 9 Apr 91 14:17:03 GMT
References: <571@lysator.liu.se> <1991Apr9.042503.18670@bilver.uucp> <1991Apr9.065832.16253@cs.ucla.edu>
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I have no technical information to relay to you, just something I learned
from experience.

I was using a machine with a high density 3.5" floppy in it, and wasn't aware 
that it was high density. Whenever I formatted a disk ( a DS/DD) I simply
typed FORMAT. The machine then formatted them to High density.

While using that machine, I could store 1.4MB of information on that disk,
bu then I tried to take one of those disks to another machine. Neither
a low density nor a high density floppy could read my disks ( and there were
about 12 of them.) Since I had lost access to the orginal machine,
I lost over 10 MB of stuff. I wasn't impressed. :-(

The point of the story is:
	If your disk says DS/DD format it to 720K.
	If it says DS/HD then format it to 1.44MB.

	In the long run, you will be glad you did. 


						Nuno

-- 
*----------------------*---------------------------*------------------------*
|    Nuno M. Paixao    |    paixao@ug.cs.dal.ca    |    dexter@ac.dal.ca    |
*----------------------*---------------------------*------------------------*
|       McIntosh Jr ... The Power to Crush the other Kids!!! (SNL)          |