On Thu, 1 Nov 2007, Jason T wrote:
  Not sure if any computer ever used them, but I
remember having an old
 Akai sampler that used a bizarre "Quickdisk" format.  The sampler is
 long gone, but somewhere I have one or two of the disks, which will be
 handy should I ever try to create a magnetic media display of some
 sort.  I think they measured...2.75" (?) and held...not much at all. 
was that a 2.8" diskette with a single continuous spiral track?