I was surprised at how disappointing the DVD Drive-in edition was. (But, as was pointed out, the extras are good.) There are several public domain copies out there, none of which are as good as they could be/should be. Probably your best bet, for now, would be to grab up Madacy's Killer Creature Double Feature release of LADY FRANKENSTEIN/TORMENTED. If you can find it, I believe Elite released a "The Ladies of Frankenstein" double feature DVD of LADY FRANKENSTEIN/FRANKENSTEIN'S DAUGHTER. I've not seen it but, given Elite's usual quality, it's probably nice.