I have Mandarin and Cantonese audio on at the same time when I play my avi file.
I downloaded the file.
How do I extract just the Cantonese?
Once I know how to do this, then I know how to copy the Cantonese audio together with a soundless avi file so I can get just Cantonese.

But, plz, tell me how I extract just Cantonese.

Thankyou.