{ BUTTON_PLAY,                  ACTION_ACCEPT,  0, CONTEXT_STD },
    { BUTTON_SELECT,                ACTION_UNUSED,  0, CONTEXT_STD },
    { BUTTON_SELECT|RELEASE,        ACTION_SELECT,  1, CONTEXT_STD }, 
    { BUTTON_MENU,                  ACTION_MENU,    0, CONTEXT_STD },
    { BUTTON_LEFT,                  ACTION_BACK,    0, CONTEXT_MENU|CONTEXT_TREE },
    { BUTTON_SELECT|BUTTON_REPEAT,  ACTION_CONTEXT, 4, CONTEXT_STD },
    { BUTTON_SELECT|BUTTON_PLAY,    ACTION_EXIT,    5, CONTEXT_STD },