Why am I getting a 'The document "export.mov" could not be opened.' error when I export a subtitled movie?

If you're trying to export a subtitled movie and see a message "The document "<your filename>.mov" could not be opened." after you've exported the movie, or if you double-click on the exported subtitled movie and get this message, the culprit is likely QuickTime X which cannot play subtitled movies.

QuickTime X is the default QuickTime player installed with OS X Lion (10.7) and later.

You will need to install QuickTime 7 to play the subtitled movie*.  You can also use QuickTime 7 to "burn" the subtitles into the movie so that it can be played with any player.

You can find more details here: http://support.inqscribe.com/knowledgebase/articles/37648

*NOTE: Due to security risks, we do not recommend QuickTime for Windows users (more on this subject here).

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