Owen Smith
1K Club - QQ Shooting Star
I always thought the extensions were reserved within the bandwidth whether they contained ES or 96 metadata or not, but can't find a white paper.
Given that DTS existed long before the ES and 24/96 extensions were invented I can't see how that would be the case. It may always be encoded that way today, but at some point in the past it wouldn't have been. Find an old encoder?