Hmmm...
I didn't know you could add multiple subtitles with the same command.
I've been repeating the command for each subtitle.
I noticed some distinct differences between your code and my code.
I wonder if that's the reason why it's not working with iPhone/iPad.
I can say that both of my attempts (MP4Box/Dumpster and just MP4Box) worked on iTunes, iPhone 4, and iPad2.
JJ
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