[MPlayer-users] transform .mkv in divx and add sub in an .avi

[octane]

Hello

two questions.

1.
I got a mkv file which have 2 sound channel and 2 sub files.
I can play nice the movie with mplayer.
I want:
change the video codec, use one sound channel, and 1 sub file
in order to have a single divX file.
How can I do that with mencoder?

2.
I have a .avi file and a sub .srt file. I want to mix them in order
to have the file _with_ the sub. Also, I need to intriduce a -subdelay.
How can I do that with mencoder?

Thank you.