multiplexing multiple audio streams
Can somebody tell me, or direct me to a page that will tell me, how to multiplex multiple audio streams into an mpeg file? I want to include 2 or more audio tracks on DVD's I'm authoring, and I'm still not sure how to go about it. I tried mplex, but when I tried to merge in the second audio stream it failed with an error. The man page doesn't help much either.
Thanks in advance for any help.