CRC error

I have a AMD 2600 athlon XP, 1 Gig of DDR RAM, 60 Gig hard drive and a 128 RAMDAC video processor

SCENARIO:
when trying to install certain games such as Tom Clancy Rainbow Six 3: Ravenshield, i get the following error during the installation process:

CRC error: The File C:Program Files/Red Storm Entertainment/Ravensheild/sounds/High/Foley Import_rainbow Movement.SBO doesn’t match the file in the setup’s .cab file. The medium from which you are running the setup may be corrupted; contact your software vendor.

can someone please help me?