DEC Rainbow disks - help

[Jules Richardson]

On Thu, 2005-07-28 at 18:33 +0100, Tony Duell wrote:
> > 
> > I just acquired a Rainbow with ~10 boxes of disks.
> > Most are for DOS it seems, though some for cpm/86.
> > Could someone explain the differences between the
> > types of media meant to run on this puter, whether it
> > has to do with os, or physical properties (soft
> > sectored, hard sectored, RX50...). I also have access
> 
> The RX50 drive (used in the Rainbow, and for that matter the Pro) is a 80 
> cylinder single-sided drive. The Rainbow (and Pro) have soft-sectored 
> double-density controllers, and store about 360K on each disk. 
> 
> These parameters are independant of the OS used.

Further to that...

If I'm remembering right, you're not supposed to use floppies with hub-
rings on the Rainbow drives as it tends to damage the drive (and at the
very least means it'll no longer read disks without hub rings properly)

cheers

Jules