Cliff's notes: in YouTube - select the Share option, select the Embed option, right click the highlighted iframe tag (html code) and copy it to the Windows clipboard, then paste it to the edit pane in the mach1registry browser.
i'm a visual person, so...
and select 'Preview Post' (next to Submit Reply) to make sure everything works before submitting your post.
just for grins, here is the music from Gymkhana 7