In some email I received from Takahiro Kambe, sie wrote:
> In message <20011011114105.A13209@theory.cs.uni-bonn.de>
> 	on Thu, 11 Oct 2001 11:41:06 +0200,
> 	Ignatios Souvatzis <ignatios@theory.cs.uni-bonn.de> wrote:
> > But some media are != 512 - some MO use 1024 bytes, some 2048 bytes.
> > CD in data mode also uses 2048 bytes.
> Also some floppy disks used 1024 byte, or 256 byte on micro computers
> in old days.  :-)

Some CD's have dip switches for 512 byte sectors.  Anything you want to
book a Sun box from needs to support that.

Darren