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Contents of What are captions?

What are captions?

• Captions can be closed or open:
• closed captions can be turned on and off by the user
• open captions are visible to everyone and cannot be turned off
• QuickTime Player, iTunes, various mobile Apple devices, RealPlayer, Flash and Windows Media Player all provide controls for turning captions on and off
• Depending on the format, authors can also provide custom controls for toggling captions