Hi Greg, I used to try and link the master release (Argentinian in this case) to the new entry to as I'm guessing you did with your attempts to link this CD. I too would find that the "can't find CD" message would quite often crop up, perhaps something to do with entry being new on the database, not moderated but I don't really know why .
Anyway, what I'm getting at is that to avoid this slight inconvenience I link the other way around copying the URL of the new entry and linking to master on the master entry page. This seems to work even if you've had the "could not find" message. In this case I opened the master and other three versions in separate tabs and linked them all to the master one by one using their separate URL's.
It may seem easier to just copy the master URL and link it the three other releases but as you know the system sometimes has problems with finding things this way. Does this make any sense Greg? Anyway the upshot of it is if you run into that problem again reverse the way you're trying to link.