Embed captions in more formats
You can currently only embed closed captions into Quicktime MOVs. This needs to be expanded so you can also embed captions in MPEG-2 (PS & TS) and MP4 formats. You can currently do that in Apple Compressor, but not Media Encoder.
Jeff Young commented
+1 for MP4, please. I currently need a third-party Mac-only app to embed captions.