The good news is that the new CDs have exactly 12 cm and the miny format is described 
on the boxes and on the shelves as 8 cm CD-R or RW. The customers seem to have no 
qualms about understanding this designation.

I am sure that the new DVD-RW will also come in 8 cm format. 
This format is a lot more compact and it fits into a pocket. The curent mini CDs have 
a capacity of only about 200 MiB which is already a far cry from the 1.4 MiB but if 
they come in DVD-R format this capacity should increase considerably.

A.

----- Original Message -----
From: Markus Kuhn <[EMAIL PROTECTED]>
Date: Fri, 12 Jul 2002 12:53:16 +0100
To: "U.S. Metric Association" <[EMAIL PROTECTED]>
Subject: [USMA:20971] Re: 90-mm floppy disks


> Brian J White wrote on 2002-07-12 05:41 UTC:
> > >And it may in fact be the same situation as a floppy disk.  Made to 90 mm
> > >width, but called a 3.5.
> 
> The 90-mm floppy disk was designed completely in metric by a Japanese
> manufacturer (Sony). It became called the 3.5" floppy only when IBM
> started using it in the US in 1986 with its PS/2 series of personal
> computers.
> 
> > It may be...which is why I am asking for some kind of 
> > source/proof/documentation.
> 
> The foreword of American National Standard X3.171-1989 (section 1.3)
> *explicitely* says this product is a metric design and that the
> millimeter dimensions given in the standard are the authoritative ones
> (and the inch values are only provided to simplify life for US
> manufacturers).
> 
> I have a copy of ANSI X3.171 here on my desk, and the outer dimensions
> of the disk are exactly 94.0 x 90.0 x 3.3 mm, and the disk diameter is
> exactly 85.80 mm
> 
> Markus
> 
> -- 
> Markus G. Kuhn, Computer Laboratory, University of Cambridge, UK
> Email: mkuhn at acm.org,  WWW: <http://www.cl.cam.ac.uk/~mgk25/>
> 
> 

-- 
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