Actually that box set is a joke, created by someone at the 'Classic Horror' board.
'Monster Kid' humor!
If you read the back closely, among other things, it mentions under the SPECIAL FEATURES these discs would make good Frisbees for your dog.
It's kinda hard to read, though. I thought this set was for real when I first saw it, too.
That is pretty good... when I first saw 'the lethargy collection' I couldn't help but laugh :)