Are there any mono tracks that have currently never been released on DVD/Blu-ray?
Some of the Dirty Harry films.
The original stereo mixes for Back to the Future haven’t made their way to DVD/BD either.
The mono mix for Star Wars has NEVER been released on video officially!
Are there any mono tracks that have currently never been released on DVD/Blu-ray?
Yes. A lot actually.
It seems like it’s more rare for the original mono to be included then not.Sorry, I forgot to say original mono tracks. While it’s true the original tracks for the films mentioned above have never been digitally released, the 5.1 mixes still sound the same as their originals with no noticeable changes made to it.
The only film I know of where this has happened is SW:ANH. While the mono has never been officially released, the original stereo mix was first released for home media in 1982. Then in 1985 the original stereo track was remixed with changes being done to some of the sound effects and a line of dialogue being added. This was used for every home media release until the 1993 USDC/1995 Faces where it was remixed again with elements from the mono mix and new sound effects added with these changes being carried over to the GOUT DVD; and the rest is history after 1997.
Besides ANH, are there any other films where the original mono/stereo mix never got released on DVD/Blu-ray?
Well, besides the mono mix for the original 1977 Star Wars, I know that the original stereo mix for Don Bluth’s original 1986 film of An American Tail never got released on DVD or Blu-ray, as far as I know, with all that controversy over all that unnecessary remixing and redubbing of the voice/dialogue and sound effects elements of the original 1986 mix.
But I do think that its first sequel, 1991’s Fievel Goes West (which I do remembered best for Fievel’s sister Tanya’s songs, Dreams to Dream and The Girl You Left Behind, courtesy of the beautiful and lovely musical collaboration between The Powerpuff Girls’ commander and the leader Blossom Utonium’s original voice actress Cathy Cavadini and the late great movie music composer James Horner who also did the music for everything else like Star Trek’s Wrath of Khan and Search for Spock, the 1988 George Lucas/Ron Howard fantasy collaboration Willow, the first Land Before Time movie, Braveheart, Apollo 13, and even James Cameron’s Titanic and Avatar before being killed off in a summer 2015 plane crash) really sounds fine for me, for they somehow kept the original 1991 stereo voice/dialogue, music and sound effects elements intact, only to up mix those for Dolby Digital and DTS 5.1 audio for the DVD and Blu Ray release, or maybe without any changes to the original stereo mix at least.