I tried and tried adding rare commeantary track and 5.1 audio from DVD without success.

BD Video = 24 fps
DVD = 23.976 fps

I found first initial frames of the 2 sources in AVSPMod , that's all.

How should I do for stretch and delay ? Very noob in audio syncing , I'm trying to use Audacity atm.

I would really gratefull for helps.