rem: if (totem_playing_dvd (totem) == TRUE)
add: if (totem_playing_dvd (totem) != FALSE)
context: totem_action_previous (Totem *totem){	char *mrl;	if (totem_playing_dvd (totem) == FALSE &&		totem_playlist_has_previous_mrl (totem->playlist) == FALSE		&& totem_playlist_get_repeat (totem->playlist) == FALSE)		return;        if (totem_playing_dvd (totem) == TRUE)        {                bacon_video_widget_dvd_event (totem->bvw, BVW_DVD_PREV_CHAPTER);        } else {                totem_playlist_set_previous (totem->playlist);                mrl = totem_playlist_get_current_mrl (totem->playlist);                totem_action_set_mrl_and_play (totem, mrl);                g_free (mrl);        }}