"You have overlapping closed captions, which are not allowed."

Not clear whether Interop allows this; I think currently the hint says not but DCPs are created anyway.

It may well be that existing equipment will have no problem to have multiple CCAP tracks in interop as well. I can at least try to play them on a few servers. No big deal for now, I guess. Maybe we need to detect and give a separate hint for CCAP. In timeline view and in content list, the CCAP tracks are shown as subtitles. Maybe tag them as closed captions, and that is a way to handle this. In my test, I also use an open caption file, so, even an open caption and closed caption track in parallel could trigger that warning.
...testing... ah, no, I can have an open caption and a closed caption track in parallel without that hint coming up...

Yeah, I know, I am currently a bit overfocusing that multiple CCAP track/language option...probably the least important DCP feature of all currently...

I hope I can get my hands on a set of CCAP glasses shortly.

• Carsten

641a81bf7ad436853525d734c0d41a0f1365ecd3 should fix language setup in CCAP tags
3271345e7b35c6fdbe85cb3a14337d10973370be should fix erroneous warning about overlapping CCAP assets
2e9744b7c79a0e56193b48bd0760a7b989f06079 should fix player crash when loading DCPs with multiple CCAP assets.

Just got to add a control to the player to allow choice of the CCAP to view.

Also we need to get the ISDCF name's subtitle language from the subtitle language settings rather than from the generic metadata (and I think Subtitle Language needs removing from that metadata, and a warning should be issued if a project is loaded with a non-empty ISDCF Metadata subtitle language).

698e3ac8863d264237003b49750ae074d612f451 gets subtitle language from TextContent.

Warning about ISDCFMetadata SubtitleLanguage in cd22846b748141261db1243588fe11d1a1504ce4

8969587a712a76fefbe929823c1aa0984ae798e8 adds selector for CCAP track.

I think this is all done now ... let me know if not!