how does this need preservation? The bluray was top notch.
Well, I know that, but there were several “mistakes” that were “fixed” in it since the 1998 restoration. For instance, on the “original” mono track (which is actually the 5.1 track made mono) on the Blu-ray, Dorothy now says “Oh, Toto” rather than “Oh, Toto, Toto” when Uncle Henry gives Toto to Miss Gulch. This is because the 1998 restorers thought she said “Oh, To, oh, Toto” and deleted the first two syllables.
I, at least, would like to keep my preservation as true to what MGM intended, not what Warner Bros. intended.