I think all of those frames are not only cadence changes, they're LD side changes. LD side changes are usually put where there would be a film reel change. Reel changes are put where a few extra frames here and there won't mess anything up (you will rarely find music playing at a reel change, for example).

How much does a D1 tape hold? 'Cause it could also be that those interlaced half-frames are present like that on the D1 tape.

If I'm understanding correctly, Darth Mallwalker is saying the GOUT has one more frame than the X0 Project (+1:49:14:18 A?). If so, that's not too surprising: it's from something one step above the LDs. However, until the GOUT was released, I don't believe any version was more complete than the DC/Faces LDs. All the PAL versions had more frames missing (mostly the ones with ugly splices -- another reason why the PAL GOUT should have come from the PAL LD masters). Even the SE LDs had more missing frames. Aside from all the added crap, that is.

Looking at the big picture, I guess what Darth Mallwalker has identified shows that the X0 Project is missing exactly one frame with respect to the GOUT, and the GOUT is missing exactly two frames with respect to the X0 Project. Overall, that means the GOUT is one frame shorter than the X0 Project, right?