The Control buttons allow you to control the process of file previewing:

Button	Function
	Plays the selected file. When the file is being played, the Play button becomes inactive; the Pause button is displayed instead.
	Pauses reproduction of the current file. When a file is paused, the Pause button becomes inactive; the Play button is displayed instead.
	Jumps to the beginning of the file.
	Jumps to the previous frame.
	Jumps to the next frame.
	Jumps to the end of the file.
	Maximizes the video to the full screen mode.
	Captures the current frame.
	Turns sound on/off.