_,,,^..^,,,_ said:
OK, first I'd like to know if I have well understood the situation...
The italian BD has the best color grading, according to many, while the new 4K version has a better definition, right?
Well, if the links I posted are to the right editions, there is a problem... the italian one is 167 minutes while the 4K is only 155 minutes... or is the latter length wrong?
It is wrong. The duration of the 4K is 178:36 min; it contains several scenes more than the Italian version, most notably the Il Grotto sequence, as well as some other bits and pieces. See here: http://www.movie-censorship.com/report.php?ID=624419
I think for the video it's possible to color regrade the 4K version using the italian BD as reference, then use the latter for the (eventual) missing shots; for the audio, it is possible to use the laserdisc for almost all, then use the missing part from the 4K BD (if it has also the extended edition) or a previous extended edition DVD.
Basically, the 4K version contains most of the shots. The only two shots the Italian has which the 4K doesn't are in the torture scene (alternative footage of Tuco's eyes being squashed by Wallace) which is two shots only.
I already started work of my own, restoring original mono from the theatrical version (a buddy promised to grab the LD PCM track for me). As far as I know, there is only one extended scene in the Extended version using replaced sound effects. These can be sourced either from the untouched Italian track of the old BluRay, or from the German mono track (DTS-HDMA 1.0) of the new one.
Well, I must confess I'm not well informed about the various versions of this movie, but indeed I'm curious to know if I could be able to help.
As a matter of fact, I am well informed about them all. :)
Also, this laserdisc box set could be indeed useful for the other two movies!
Why? There are almost perfect German editions of the first two movies (FOD: based on Italian source; FAFDM: based on MGM source but fully uncut), containing English original mono in DTS-HDMA. All widescreeen MGM editions of FAFDM are cut.