Alternate 'Carnivore' version on double feature DVD
The Final Terror is also available on disc under the title Carnivore. It's actually been available for some time now (long before the other DVD release mentioned here). It was released as a cheapo double feature with Christmas Evil from a company called EastWest DVD and it's packaged in one of those slim DVD cases that you find in bargain bins for $0.97. The transfer is actually not too bad and is far from the murky VHS-type quality of the other DVD.
Look for it at Amazon by typing Carnivore & Christmas Evil Double Feature in the search box.
Hope this is of some helps to fans.