How to play NTSC games on Playstation 2?

I have PS2 game player , and I bought NTSC games DVD , Please help me in knowing how to play the same on Playstation 2 ? , Since when I am loading this DVD on PS2 , message is coming not in format of PS2 .

I take it the PS2 is a PAL consoles, If so you need a chip or swap magic discs.

I don’t believe the games are NTSC or PAL specific. If you are having region issues, it is likely with movies. What is the exact error?

They are specific.