Parental levels

Put in a DVD, and press select button to go to PS2 DVD menu.  highlight setup menu. Press X.  go to settings I think, and paretal control is there.  Use password 7444.   Usually everyone sets the password to 0000.  Then when you go into the parental settings, turn the level value to OFF

when it asks for your password DO NOT enter a password...hit select button. The screen will read delete password. This is where you enter 7444. It has worked on all 4 of my Playstations, and I got the information from Sony customer service.

Put a DVD into the PS2 and let it try to load. When the screen says chenge to level four select yes. When the entry window pops up,press the select button on the controller. It should say reset password or something like that. Put in 7444. Then when you rename the password put in 0000. You will have to do it again 0000.
Once the movie starts, not the menu screen, but the movie actually playing, Press Select button again. The PS2 DVD menu should appear. Cursor over to the toolbox or Setup, and press X. Cursor over to the third icon, and press X. Arrow down to PArental and press X. Change the Parental lockout to OFF.

I am not completely sure about the procedure here but the numbers are correct.

This password didnt work for mine either.

Umm..this factory password DID NOT work for mine...