Weird 8-inch floppy disk

[David Griffith]

I found a ten-pack of 8-inch floppy disks that have me confused.  They're 
from STAM@, a name I've never heard of before.  It's clear that they're 
hard-sectored, but the index and sector holes are along the outer edge. 
There's also a notch cut into the corner.  Both of these appear to be done 
in an attempt to restrict users to a single vendor of floppies.

Here are some pics:
http://661.org/images/weird-floppy-front.jpg
http://661.org/images/weird-floppy-back.jpg
-- 
David Griffith
dgriffi at cs.csubak.edu

A: Because it fouls the order in which people normally read text.
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