Also sufficient: source code. Open source has an
unconquerable advantage
here, over proprietary.
I do not have complete faith about this in the long term. The open
source folks tend to be a loose group of undisciplined volunteers,
generally not long term thinkers, with only a very small segment
interested in historic preservation.
'Disaster Recovery" is a funny phrase, isn't it?
The Bitsavers/CHM model works pretty well.
--
Will