Dirty cd ?!?!

[Hawken]

Operating System: Amd 64 3200, x800 256mb, kv8 pro.
Burning Software: None
Anti-virus Software: Norton Antivirus 2004
DAEMON Tools Version: 3.47

When i try to open the the game postal 2 i get an error message that says
"There is a problem reading a file from the CD.
The CD may be dirty or damaged.
Please clean the CD and try again" So what should i do. Any way to solve this. I need this to work.

[JariK-Tietomedia]

Use your original CD or check what copy protection Postal 2 uses and then re-create the image(s) in proper format, it will work then.