Pioneer DVD-V8000 - Manual (Page 77)

Operating Modes
If the disc is missing the requested menu, [1 or 2 MC], the player
returns an error message (E04).
*: However, the command is held or incompletely executed.
Execution :
String Status Return DVD player
Plays some video Title
2MC R Shows the root menu
MC R Reverts back to the
previously played Title
6.32 Numeric Button (DVD)
Function : Selects the button and executes by number
Format : Integer NB
Explanation : The command selects the menu button highlighted on the
screen and executes the action assigned to the button. The command
emulates the “digit” key on the remote control while the button resides on the
display.
If the command is valid for the current player activity, the player immediately
returns “R”*.
If the disc that is being played does not have the button in that screen when
the command is issued, an error message (E06) is returned.
* However, this does not confirm that the command is executed completely.
Execution :
String Status Return DVD player
Shows the disc menu
3NB R Selects and executes the button #3
6.33 Button Select (DVD)
Function : Selects the button (arrow key emulation)
Format : Integer CU
Explanation : The command selects the menu button displayed on the screen.
The command emulates the “arrow” key on the remote control while the
button exists on the screen. The command specifies the direction using four
numbers:
Integer directions
1 Up
- 70