To compare a score with a length of 100 minutes in two versions and in comparison to the original in three versions - RSO, Arista-Anthology, Sony-SE - an evaluation of the work takes three or four times the length of the score. And it requires very much attention and concentration. In terms of time it requires at least 4 hours (240 minutes only).

Such an evaluation that this set so richly deserves is much more time demanding than watching a movie. It is also more demanding to spot and explain the differences in music than in a movie. It requires patience from all of us.
Just an explanation to help exile some clouds from someone's mind.