Great examples with the Leone films, as I said in the beginning of this thread, MGM seems to be the great champions on bad video remixes. I never bought the extended The Good, the Bad and the Ugly DVD because of this issue, still own the first MGM DVD with the additional scenes as an extra, great release for its time.
I think I posted this in another thread: http://www.forafewdollarsmore.net/
But it's a nice breakdown of all the major issues with For a Few Dollars More on video.