Interesting! Do you got an order of magnitude of cost?
Unfortunately not--I've never embarked on a 25-year mission for myself or for clients, so I've not done any pricing.
The good news is the technology is ubiquitous--all the commercial optical media (music CD's and movie DVD's) is done this way--this implies some economy of scale.
The bad news is the commercial optical media are done at rather high production runs...
I'm sure there are duplication houses that offer pressed media, presumably in very small production runs, but as I say, I've never priced it.