Toyota Lexusc Owner's Handbook Manual page 430

DVD video disc information
(a) DVD player and DVD video discs
This DVD player conforms to NTSC color TV formats. DVD
video discs conforming to other formats such as PAL or
SECAM cannot be used.
Region codes: Some DVD video discs have a region code
indicating where you can use. If the DVD video disc is not
labeled "ALL" or "1", you cannot use it in this DVD player. If you
attempt to play an inappropriate DVD video disc in this player,
"REGION CODE ERROR" appears on the screen. Even if the
DVD video disc does not have a region code, in some cases
you cannot use it.
Marks shown on DVD video discs:
Indicates NTSC format of color TV.
Indicates the number of audio
tracks.
Indicates the number of language
subtitles.
Indicates the number of angles.
Indicates the screen to be selected.
Wide screen: 16:9
Standard: 4:3
Indicates regions in which this video
disc can be played.
ALL: all countries
Number: region code
AUDIO
411