Lexus 2004 GX470 Owner's Manual page 315

AUDIO
2. Push this button to open the cover.
3. Pull the lid forward to pen the DVD player.
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4. Insert a disc with the label side backward and close the
lid.
The player is intended for the use with 12 cm (4.7 in.) discs only.
If the label faces down, the disc cannot be played. In this case,
"DISC CHECK" appears on the screen.
If a disc which is not playable is inserted, "DISC CHECK" will
also appear on the screen. For appropriate discs for this
player, see "Car audio/video system operating hints" on page
347.
Finish