Heeeeelp

i need help ! (sry for my bad english im from germany )
i have "devil may cry" for playstation 2 from a friend and i have download :
neutrinoSX2 v0.08 - a PS2 Emulator by Muad & nSX2 team !!!
but i cant open the cd to play the game with the emulator !!! what´s the problem and how can i fix the prob. ? i want to play this game but i have no ps2 ... i love that game... *buhuhuhu* please help me !