Floppy Disc Capacities [was Pictures of My Machine Room (So Far)]

Sridhar Ayengar ploopster at gmail.com
Mon Jun 18 23:54:05 CDT 2007


Wayne Smith wrote:
>> Date: Mon, 18 Jun 2007 13:50:43 -0400
>> From: Sridhar Ayengar <ploopster at gmail.com>
>> Subject: Re: Pictures of My Machine Room (So Far)
>> To: General Discussion: On-Topic and Off-Topic Posts
>> 	<cctalk at classiccmp.org>
>> Message-ID: <4676C5F3.40609 at gmail.com>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>> Roy J. Tellason wrote:
>>> On Sunday 17 June 2007 17:26, Fred Cisin wrote:
>>>> Oh, well.  I guess that it is like selling disks based on their 
>>>> unformatted capacity - a 2.8M ED disk is called "2.88" by IBM, and 
>>>> was called "4 meg" by NeXT.
>>> I have some boxes that had "1.44s" in them branded IBM and 
>> which were
>>> labeled "2.0MB"...
>> Indeed.  All of the IBM 2.88's I have are labeled 4.0MB.
>>
>> Peace...  Sridhar
>>
> My first iteration of Windows 95 was on 3.5 inch floppy diskettes.  At
> some point, I wanted to make a backup copy on diskettes but couldn't
> because the file sizes of the Windows distribution floppies was
> 1.8-1.9MB each.  At the time I thought it was some sort of copy
> protection.  I assume they must have been able to format the discs for a
> higher capacity - close to 2MB.
> 
> Does anyone know how?

I would assume it's something similar to XDF.  Probably not XDF itself 
though, as that is an IBM thing.

You could have made a backup copy on diskettes by using the DOS DISKCOPY 
command.  It would have made a raw copy including the unusual format.

Peace...  Sridhar



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