Does anyone recall how long they were in space travelling from Earth to Pandora in the original Avatar? I went to answer that question myself by pulling up Avatar on Disney Plus, and it's been pulled.
I don't understand why he has to be involved at all. Maybe set aside a day to view the final product, give some notes for changes, but isn't a blu transfer a technical task?
Seriously - just get people who are really good at it and let them do it, and then have Cameron just look at them and...