On 20 Oct 2006 at 11:45, David Griffith wrote:
  I recently sold a Qumetrak 842 8-inch floppy drive to
a fellow who's
 restoring a CMI vintage synthesizer.  He says that this particular model
 is what the synth uses.  Can anyone think of a reason why he couldn't use
 some other model of drive as long as it's capable of reading DSDD media? 
Seek rate can vary all over the place with 8" drives.  I think the
842 will handle either 6 or 8 ms track-to-track, but others may
require as much as 30 msec.
--Chuck