Thanks so much Jonathan. That should work well to conform the 720 x 480 AI graphic to the SD video and I see I can tweak the overall size proportionately to stay inside the title-safe boundaries.
I’m still a little concerned about what will happen to the multiple logos when YouTube applies the “yt:stretch=4:3” to the 720 x 480, aka 3:2, video.
Will give it whirl and hope nothing appears distorted.
Appreciate your input. Thanks again.
Rita P.