@r_gigante @kbar
Thanks for the infomation. I assumed that was the case and it makes sense, I'm just reluctant to stop supporting older versions of Cinema but it might be time.
Riccardo, I think I was using the incorrect version of osX or XCode, not sure which, but using your codesign worked when I moved onto a later version of both and it is correctly signing my R20 compiles.
Thanks both of you for all of the help and clarifying of notarization.
Dan