How do I tell if my PS2 is mod chipped?

[maninderb]

Well, I borrowed my cousins ps2 but I don't know if its mod chipped or not. He doesn't know either. It does play burned music cds though. I don't know if thats enough. I know I should try a burned game but that would require a lot of process. Is there any other way I can find out?

[Lucandrake]

Were did he buy his ps2, and has it ever been opened?

[Agozer]

All PS2s can play burned audio CDs because all they contain is regular CDDA tracks. Whether the PS2 can play burned games is a totally different matter.