Play and pause a video
Video format 16：9 /4： 3
quit
menu
lower the volume
raise the volume
zClick this button 
to set up delete bookmark, play mode,
zTap play mode to select one of play modes: single, repeat one, repeat all, or tap back to A menu.
4.1.3 Picture Browsing
zIn the main menu or desktop，tap the picture browsing icon 
to enter the viewing interface
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