Universal Classic Monsters Blu-ray Monster Tracks

[Spottedfeather]

I just got the UK version of the Universal Classic Monsters set and it's just amazing....like we all know. I was fiddling with the menus and found the thing called monster tracks. This is some sort of trivia track, as I found out. But what I also found out is that there seems to be a hidden track....at least for the Frankenstein disc. It seems to be a monster track as well, with different information. But when you choose the Monster Track option, it gives you a default track on the 20th audio channel. The other track I found is on the 10th audio track. You can't choose this one from the menus.

Has anyone else noticed this ? Are these bonus tracks on the other movies in the set ? It's good I really love these movies, as if what I said is true, then I'll have to watch the movies 4 times to see everything.....