j40 said:
I don't know about the copyright issue.
I'm making it for free, for the future of Cantonese.
I have just finished 65 percent of typing.
Anyway, if you want to use txt file, I can give you.
The copyright would be the concern for us - we're trying to get access to several other out-of-print dictionaries (Matthews, Karlgren) too, but as with this one, even though they're out of print our ridiculous US copyright laws prevent us from legally using them without finding / obtaining permission from the current copyright holder. (no central registry, no way to just distribute them and pay royalties at a standard rate / into a pool, etc) Honestly it's unlikely you'd get in trouble for this, it's pretty unlikely we'd get in trouble in fact, but since we work with so many publishers we have to be extremely careful about respecting copyrights.
This looks like a really cool effort, though - incredible amount of work involved, clearly. Is there a copyright notice in the title page somewhere? I'd be happy to try to contact the publisher and see how they feel about releasing under Creative Commons or something similar.