Closed Captioning and Digital Delivery

How is closed captioning delivered when delivering digital files to a broadcaster?
Is cc somehow encoded in the mov file or are the cc files just included on the media?

Compressor is supposed to be able to incorporate Closed Captioning while transcoding by adding it to the Additional Information tab of the Source file.

The criteria is that the time codes of the source file and the time stamps in the .scc file (closed captioning file) match; which I checked and they do coincide.

The problem though, is that it didn't seem to work. I created a .mpeg file; but when viewed in QT Player, the Show Closed Captioning option was not available ? like they were not there. However, the QT manual indicated that unless the encoding was EIA-608, it wouldn't be available.

Compressor uses the EIA-708 coding. I have yet to find a way of verifying that the closed captioning is actually there and useable.

The info is found in the Compressor User Manual under:

Importing Source Media Files
-About the Batch Window
-Adding Source Media Files to a Batch to Create Jobs
-Using the Inspector with Source Media Files
--A/V Attributes Tab
--Additional Information Tab