Oddly, another source I have for the Spanish audio has the Han-Greedo scene missing. I wonder if that was swapped out more commonly than we thought. No idea why anyone would want to do that, though, unless maybe Han calls Greedo a very dirty word in Spanish ;)
EDIT: Also, I believe -1 has more than one print, so if the Spanish print is too damaged at the beginning of reel 2 for example, he can swap in frames from another. I actually don't know if the audio problem at the beginning of reel 2 was actually a print problem or a capture problem. No big deal I'm sure.