If demand is strong enough, and the supply isn't there from the creators, then bootlegs are inevitable.
That's very true. I'm no expert on copyright law, but to the best of my understanding, in the case of a foreign production where no domestic version exists, such as the BBC
Dracula, the product is not subject to the same protection as properties that are readily available. In other words, an "unauthorized" copy of the BBC
Dracula is not protected as would be a copy of, say, Spielberg's
War of the Worlds. Someone who knows the details of the law better than I (Darren?) may chime in here.
Frankly, if after 30 years, a product of mine has not been commercially distributed, and I'm not making anything off of it from any other venue, and there are no plans to make it available (all of which appear to be the case with the BBC
Dracula), then I would probably thank my lucky stars that someone is distributing it to the public. That's just me, though. In such a case, I would certainly prefer that the distributor in question -ask- me if it's OK; and if they want to sell it badly enough, they could work out a binding contract with me.
Regardless, the reality is that lots of foreign products are not available here and never will be, and that's where international copyright law gets rather iffy. I'll tell you right off the bat that I have over the years picked up a lot of "unauthorized" Godzilla movies, the original versions of which have not been domestically available. There's no statute against -owning- them. (Producing them may be another matter.) However, in recent months, many of these have been made available, through Sony, and I'm the first in line to buy them. Maybe I'm in a minority in that regard; I dunno. Especially as a creator, I want to be compensated for my work. On the other than, if, as a creator, I'm getting nada because a studio has buried the property, I might favor it seeing the light of day, especially if there's a demand, with the idea that that very demand might increase the property's value -- thus increasing the chances of a legitimate release that will net me a real profit.
That may sound like a lot of hooey, but it's not. It's exactly what happened with a lot of anime from Japan. Consequently, it's become a big market.