There are two arguments on this, and I tend to think that Manuel's right (especially since I am only making SMPTE versions.)
But another argument is that since some festivals might be in 'less than updated' facilities or with Phase One projectors that may or may not ever be SMPTE compatible, and since a 'once-a-year' user might not know/notice the nuance of this, InterOp is a good default.
I'd suggest a pull down or decision buttons that have no default, but with a box pointing out that a choice HAS to be made.
Just seeing the numbers from wide releases in US. Basically, non-SMPTE theaters are not relevant anymore. Some major studios are already nearly fully SMPTE, theaters that didn't do the minimal updates will do them now, for sure.
I would insist in going back to default to SMPTE as the standard for new installs.
Manuel AC
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