That's detail at too low a level. You need to do something like what I show in the
attached image. Then start downloading every variant that VDH lists. You may have to
start playback of your video before you look at the VDH menu. Then just download each
item on the VDH menu. I give detailed instructions for this here:
After you download everything, look at each file you get. Figure out which ones are
video without audio, audio without video, or you may get lucky & find the one that is
both audio & video just like you wanted, and that would not have to be aggregatged.
You should also use this thread as a reference tool:
I can't look at this web site since you need a user ID & password to get into it. You
are going to have to do most of the work yourself. I'm not going to be able to help you.
You have to do this.