Well, I can't copy other people's posts, of course, but here are mine from that thread on HTF. (I copy them over wholesale to add context to this discussion, and sincerely don't intend to violate rules either here or at the HTF.)
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Hmmm. I'm very intrigued by the trailer on the French DVD, because of the footage there that is no longer in the film.
It has long been a pipe-dream of mine to use the materials available to do my own (personal) reconstruction of the film... Unfortunately, my DVD authoring software can't do multiple video angles or soundtracks yet -- gotta upgrade -- but what I'd like is:
Main Video: Footage re-cut into proper order, extra scenes excised, stills/script/intertitles where needed to bridge gaps.
Alternate Angle Video: Shooting script.
Main Audio: Soundtrack to match main video. Where there are gaps in the video with the stills (etc) voice-over from Welles/Bogdonovich about the missin materials.
Secondary Audio: Commentary track, with additional Welles comments about the film. There's not enough released audio to fill the whole track, so there'd need to be bridging material -- either someone else reading from Welles' comments on the film that haven't been released on audio, and/or additional scholarly info.
Third Audio track: Feature length coherent commentary. On my own personal authoring, I'd place the criterion commentary here. For a commercial release (were someone to attempt the general scenario of what I describe) they'd probably need to do a new commentary track.
Finally, if it were a commercial release and not my own personal version, there should be a way (seamless branching) to see the film in it's released format, as well.
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Whew. Now all I need to do is upgrade my DVD authoring software, and loose my day job so I have enough time to tackle it all!
[several responses missing... and then my follow up. Someone suggesting using CGI on the few seconds of footage in the film's trailer on the French DVD to "re-create" a missing scene through CGI technology, hence my initial remark. However, I was just interested in the trailer in that it could provide a few "stills" to use as described below.]
I must admit, I wasn't thinking CGI-recreation! (I ain't that good

Just something like a slide show using stills where they exist, then storey boards (need to check my CAV LD and see whether the storey boards have the dialogue written on them) if necessary, then script shots, where nothing else is available.
I don't think anyone would find it entertaining, other than Welles fanatics. But what the heck.
Of course, I was thinking I could work solely from the Criterion LD info and "The Magnificent Ambersons : A Reconstruction" by Robert L. Carringer, and assume I was doing the right thing. After reading the stuff on Wellesnet, I'm no longer so sure! Gotta think it through some more.