RapidWeaver Stacks add-on info: Responsive YouTube Videos – load YouTube Hits & Videos on your RapidWeaver site. Works with Vimeo videos, Flickr slideshows & Google Calendars as well. A lot of youtube videos starts by a storyteller starting the video by saying… yes, right 'hi'. That's why the Youtube Stack became the HiTuber Stack :)
Latest update (3.0.3) will allow users to add a html5 mp4 video or audio by simply adding the video to resources and CopyPaste the macro that RapidWeaver provides (by simply ctrl click the resource).
If you need to create a movie / audio site, I recommend the GoGrid Stack. You can see it in action at the bottom of this page.