The isolated scores on the Classic Editions are the same as the ones on the Editdroid discs, but the sync on the Classic Editions is sometimes incorrect, most likely due to differing frame counts.
They also don't sound anywhere near as good as ABC's work, since they just used the SE versions.
I was toying with idea of synching ABC's tracks to the films to create new isolated scores, but that would not be for a while. I'd rather have such a thing on its own disc rather than trying to squeeze more and more tracks onto a single dvd, anyway.