Well, you're out of step with UK law there, since Schools and Universities (and a few other organisations, for limited purposes)
can make multiple large-print copies, as long as they're for educational use (and they can't be kept after the course is finished).
(
here)
I believe the equivalent US law is the "
Chafee amendment"
The problem with these laws is they're national-based. Organisations cannot share their accessable libraries across national boundaties (well, a few EU countries can, but that's an exception). That is what the WIPO proposed treaty is about, and it'd dramatically increase the amount of reading material for the blind, especially for non-English books!