no HD Disks in 1541/71 and hub rings - test-drb@ccmp.vtda.org

30 May 2001

...
  Date: Wed, 30 May 2001 07:09:51 GMT
 From: pete(a)dunnington.u-net.com (Pete Turnbull)
 Subject: Re: New HD disks not working in 1541?

 On May 30,  3:52, Gunther Schadow wrote:

 > now that I have my old C64 setup back I found that I could not
 > format newer 5.25" HD disks on the 1541 or 1571. 
Yep DD even reccomended for the 8050,8250 or SFD1001 (which are quad
density drives), HDs 3.5" kinda work in 1581s but also aren't
reccommended.  Over the past few years I've cleaned out our local
'dollar'ish stores of 5.25" disk 10-packs when they get em.

As for hub rings I heard they were required (for gripping purposes) for
the older Apple drives (the metal boxy ones), maybe even for the 4040s,
but I know without them on those old lever drives, you could sure mangle
a non-protected center hole clamping down on one.

Anyone have a hub-ring kit still? (reminds me of today's CD stompers)

...
  As others have said, you need disks intended for
single-density or double
 density, not HD.   I've also met one 1541 owner who swears that disks
 without hub rings won't work in his drive (and never did) because the
 mechanism doesn't grip them tightly enough (though I'm fairly sure that's
 just due to a soft spring or a missing screw on the frame somewhere). 
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