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To synchronize videos across players in BrightAuthor:connected, you must ensure that both the presentation video zones and the player clocks are synchronized (these principles are the same BrightAuthor).
Note about XC5 Players
Since XC5 players have multiple outputs, the presentation clock does not need to be synchronized unless you are playing a presentation from multiple XC5 players or an XC5 player and another type of BrightSign player.
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