Universal originally produced special edition DVDs of their classic horror movies , including Frankenstein, Dracula, The Wolf Man, The Creature from the Black Lagoon, and The Mummy. For the sequels to most of these films, Universal decided to include two full-length features for the price of one on each disc. After The Bride of Frankenstein came two more sequels: 1939's Son of Frankenstein, with Boris Karloff in the role with which he will forever be identified, and 1942's Ghost of Frankenstein with Lon Chaney Jr. filling in as the Monster. Both transfers for these films are presented in their original 1.33:1 full-frame aspect ratio. With the age of these films, the excessive amount of grain, nicks, and scratches on the prints is to be expected. However, even with these imperfections, the image quality is very good for movies well over 50 years old. Black-and-white levels show some fading, but overall the images look very good. Audio is presented in Dolby 2.0 Mono on both Son of Frankenstein and Ghost of Frankenstein. Dialogue is usually clear with some distortion throughout the movie. Music and effects sometimes blur in and out, but once again, with the age of these films, distortion and hiss are to be expected. English, French, and Spanish audio tracks in Dolby Mono are available on both features, as are Spanish and French subtitles. Unlike the previous releases, the double feature of Son of Frankenstein and Ghost of Frankenstein comes with very few supplemental materials. Both Son of Frankenstein and Ghost of Frankenstein feature some production notes about the making of the films, as well as some cast and film information. Ghost of Frankenstein also features a full-frame scratchy theatrical trailer that is a lot of fun to watch. Though the extra material is slim on this disc, the fact that viewers get two movies for the price of one certainly makes up for it.