Playing Flash Video from my computer

I'm about to use Video for the first time. It's a :20 second clip with Audio that must be synchronized.

This is never (ok, I'll say very rarely) meant to be seen on-line, only from my computer.

I need it to start instantly, either on click of a mouse or on the playhead hitting a specific frame.

When I embed the video and come to the "deployment" option, which is the best option I choose?

Thanks,