[deank]

I agree with you and in my post dated Jan 8th in multiAVCHD's thread I underlined:

multiAVCHD's re-author feature is in no way replacement of or can be compared to BD-Rebuilder's features and reliability, and is also not added with an idea for competition. It should be possible to use multiAVCHD re-authored output with BD-Rebuilder, but if you do and have problems state that you used a re-authored copy, but not the original (which would usually mean a problem within multiAVCHD, but not BD-Rebuilder).