multiple CEA-608 captions don't show

[Greg Hartwig]

Using Subler version 1.3.6 on OS 10.12.6, I have embedded two SCC caption files in an MP4 file and set them to different languages. When I play the file in iTunes, no captions show up in the menu to select. If I delete one of the captions (and save and optimize), the remaining caption shows up and plays fine.

Closed Captions (even with only a single one) don't show up in Quicktime Player 7 but work in iTunes. Maybe that's a different problem.

[Damiano Galassi]

Set the same alternate group to both track, enabled only a track in the alternate group.

[Damiano Galassi]

Quicktime Player 7 supports only one Closed Caption track for a file.

[Damiano Galassi]

1.3.7 set the same alternate group as the subtitles track.

[Greg Hartwig]

I set the Alternate Group to 2 for both subtitle tracks and that seemed to do it, thanks. Sorry, I see that there is information about this in the FAQ. I hadn't heard of the Alternate Group setting before. I found information on it and will read up on the subject.