I do have several DVDs I've kept or repurchased over the years since Blu-ray disc debut in 2006 due to mainly those releases having bonus features, even trailers, which weren't carried over. A very easy example is RoboCop. The Criterion Collection LD/DVD and MGM 2-Disc DVD still have exclusive bonus features not carried over to the Blu-ray discs or UHD releases. The ARROW BD & 4K UHD releases are absoutely stellar, and of course due to licensing or whichever don't carry over every bonus feature from prior disc/optical formats.
There's an extensive listing on the blu-ray.com forum for many but is only for Blu-ray disc, even though 4K UHD have many of the bonus features carried over. Many are even audio commentaries which have last been on LD or DVD and have never been featured on the two most current disc formats.
It's quite easy to use MakeMKV for the video bonus features, even trailers, on the DVDs but I'm unsure of what program to use for audio tracks. There's a plethora of LD audio commentaries, some from DVDs, which have been preserved as AC3, some MP3 which should be redone as AC3, that I could upload or make available. Those audio commentaries are ones I've downloaded ages ago which should be readily available.
Any recommendations or other ideas? This might be easiest for DVDs which are OOP or difficult to find. Of course, the interest regarding specific films is a factor.

Herro!! New user hea!

Good evening, all!  Super hyped to now be able to post and to say hello   

Big fan of movies, especially oldschool martial arts flicks!  Excited to be a part of this community.

I did not hit her. I did naaaaaat.

I'm an old haggis. I like the movie fillums. I'm here to talk mooovies and learn to hopefully make my own restorations.  I've been really impressed at what communities like this can produce over the years when the main distributors don't seem to care at all! 

Hope to catch some of ya'll around on the internets. Hi doggie.

(you're my favorite customer)

Does anyone have the 1991 MGM LaserDisc [ML101642]?
It seems to have the best audio.

https://blah-ray.blogspot.com/2023/12/dr...-1931.html

Hey, 

I'm a Trailer-Editor and Filmmaker and happy to have found this forum. One of my guilty pleasure movies is Highlander II and I'd love to see some of the progress, that has been made, to restore the 35mm version of that film and others.

I can't believe I'm only discovering this site now.

Just made an account on here, hoping to find quality original audio of classic movies.

Hiiiii

Hello, 

Would someone be interested in syncing the DTS-HD MA 4.1 original theatrical mix (from the UHD) to the 35mm scan of Alien ?

I can provide the video and the track