The following extras are included after the main feature, on side two:
Chapters 7 and 8 - Alternative scenes
Chapter 9 - The original ending
Chapter 10 - Theatrical Trailer
Chapter 11 - TV Spot
Chapter 12 - Behind the Scenes
The mint marks (not often found on PDO UK discs) are identical for both sides.
Additional Information by dnelms
Commentary on Analog track 1 is from Sam Sherman.
From the end of the liner notes:
This collector's edition laserdisc assembled by Sam Sherman, presents the original cut that played theaters and drive-ins before it was edited for TV. Mr. Sherman has recorded a commentary and assembled a Supplemental Section with alternate cuts of some scenes, the films original ending, trailer, TV spot and a still gallery. This laserdisc is dedicated to the memory of Al Adamson.
This film is reported to be the last film appearance by horror great Lon Chaney and also has an appearance by Forrest Acherman, Editor of Famous Monsters of Filmland.