Audiovox D1210 Owner's Manual page 23

Select the parental level you desired using UP/DOWN for
discs with lock-out function or multiple rating levels. It's listed
from the lowest level (1 Child) to the highest level (8 Adult).
Press ENTER to enter the password verify page.
Input the password in 4 digits, and then press ENTER to
confirm the parental level setting. For 1st time users, the
default password is 3308.
Note: After inserting the disc in the player, if the paren-
tal setting of the player prohibits playing the disc,
the following menu will appear in the screen:
Select YES using LEFT/RIGHT and press ENTER. Then input
your password in 4 digits or the default password 3308; this
player will start playing the disc.
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