CD Protection

hi guys :smiley:
i’m working in a Multimedia CD, i want to finish my CD and put the *.exe file in it to make it autorun… it’s ok till now, the client want to make the CD protected.
i mean no one can copy or edit… ( i know any expert can make it) i talking about the normall user… can anyone tell me how i can do this :smiley:

thanx