Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!apollo!angelini
From: angelini@apollo.HP.COM (Bob Angelini)
Newsgroups: comp.sys.ibm.pc.programmer
Subject: Re: 1.6 mb diskettes
Message-ID: <4af5e46a.20b6d@apollo.HP.COM>
Date: 12 Jun 90 17:45:00 GMT
References: <5773@hub.ucsb.edu>
Sender: root@apollo.HP.COM
Distribution: comp
Lines: 19

>6500chng@ucsbuxa.ucsb.edu (B. N. Cheng) Writes:

>Recently, I bought a 3-M high density diskette and noticed that it
>was labelled 1.6 mb. Is it possible to format that many megs into the
>floppy using a standard AT 1.2 meg disk drive ?
>Perhaps there are programs or source codes that could do this.
>All my attempts have so far been unsuccessful.


1.6 Mbytes is the UNformatted capacity of the media.  It is possible to
gain additional formatted capacity by changing the disk format. For example:

80 Tracks X 2 sides X 15 sectors X 512 Bytes/sector = 1.288 Mbytes (less 
file system overhead: directory, fat ect.).

80 Tracks X 2 sides X 8 sectors X 1024 Bytes/sector = 1.311 Mbytes (less 
file system overhead: dir, fat ect.).

Bob Angelini