NeXT OD achiving

[Gavin Thomas Nicol]

I have one OD drive in a cube that works (for how long, who knows). I  
also have a 0.8 OD disk that I need to archive, and later install  
onto an HDD. Installing by booting from the OD seems really risky so  
I'm thinking of doing a dump(8) of the OD drive dd'ing it to files on  
a larger hard disk, and then using using restore/dd to a new HDD.

I remember a thread a long time ago about archiving NeXT OD images.  
Given the fragility of the drives, chances are I'll only get one shot  
at this, so I would appreciate hearing from anyone with experience  
archiving, and then using such images.