Weird 8-inch floppy disk

Josh Dersch derschjo at
Tue Dec 2 00:03:56 CST 2014

On 12/1/2014 9:53 PM, David Griffith wrote:
> 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:

Those look suspiciously like floppies for the Memorex 650/651 -- the 
first commercially available read/write floppy drive (1972).  I just 
picked up a 651 myself (mostly because it looks cool, I can only hope to 
someday have a machine to use it with...)  If you're willing to spare 
one of those disks (so I have a matching set) let me know... :).

- Josh

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