DCP-o-matic

Hi,
we received a movie as a .MOV file. Its audio has two channels, L and R.
Now the film composer has created a special 5.1 sound mix which he will send to us as an audio file.
I understand that I can just add this into d-o-m, so far so good.
But: how can I remove the audio content of the original .MOV file?
Cheers
Ulrich

Select the .MOV file in the content list, go to the "Audio tab" and deselect the mappings for L and R (so that there's no green squares). Then none of the audio from the MOV will be mixed into the DCP.

Easy as pie.
Thx heaps, Carl!
U.