I've always been under the understanding that Loop Group is SAG/AFTRA jurisdiction, and since these actors make royalties, that any recorded group ADR cannot be custom-library-mastered (no licensing, just in-house use) for future usage in effects editorial. Is this actually the hard and fast rule, or is there more to this that I may not be familiar with? Because I have heard pre-recorded group ADR in custom libraries before but I've always thought that you're not supposed to.
Ultimately, how is the line drawn on this issue of "mastering up" group ADR for future personal usage? I personally haven't chosen to do so because of what I currently understand about the politics and legalities. I'd love to hear some thoughts on this though, especially from the veterans who have spent a lot of time working group ADR (since it probably won't apply to smaller films). Thanks!