Like Mabcom said, theres a problem with your modchip cuz the settings are stored on a eeprom memory. The DVD controller chip (mechacon) controls that memory. If theres a problem with it the PS2 will be asking for the setup every time you turn it on. Also theres a risk you fry the laser as the settings for the laser current and type are on that eeprom ....
SCPH-10000_GH-001 SCPH-15000_GH-003 SCPH-18000_GH-008 SCPH-30001_GH-005 SCPH-30000_GH-016(V4) SCPH-30001_GH-010(V4)
2xSCPH-10190, 2xSCPH-10350, 2xSCPH-10280
"**** j0 hackers!"
-Sjeep (As seen on TOXIC OS ELF...)