Actually we kind of like super-duper 8 and plan to continue using it (ultra super 8 doesn't do anything for me personally). It's one of those things that has been implemented by a number of different people so it seems to go by a number of names, though when I google ultra super 8 (or others I've heard, such as 8extra) I get nothing that would suggest it was in wide use, if used at all beyond these boards.
Having said that, super-8-know-everything (and I mean that well) Martin W. Baumgarten informs me that:
"It's also known as the Super 8-B format (B for the german word
Breitwand, meaning Widescreen) as via its inventor Ruedi Muster of Muster Film
& Video Technik in Switzerland. It's original inception is from conversion
of the BOLEX H-8 and H-8 Reflex cameras, and then moved over to the cartridge
loading cameras."
So if there is any "professional" (i.e. camera manufacturer-derived) phrase for it it seems to be super 8-B, but in the meantime, whatever...
Rick
www.friendlyfirefilms.ca