Guides
Things that cost us a day to find out, written down so they cost you an afternoon. Mostly digital cinema packaging, subtitle standards and key delivery.
The 138-byte cipher block, the Recipient element, the validity window — and the four failure modes behind nearly every “key not valid” call from a booth.
SubtitlingTwo specifications, not two dialects: different root elements, time models, font models and validation regimes — and which one a given delivery actually wants.
SubtitlingIssueDate time zones, EditRate vs TimeCodeRate, inverted Vposition, LoadFont UUIDs — the details a schema cannot protect you from.