1. exporting to you tube 2. burning loop dvd

Question 1: i uploaded a movie from final cut pro to you tube, after publishing the movie shows stretched out on the screen. what do i need to do for the movie not to appeared stretched.

Question 2: i burned a dvd to with the superdrive and i wanted to make the movie to play when loads and to loop. even though the loop was selected on the program it does not. how do i burn a dvd that loops and plays automatically.

thank you.

Rosa