Game Assassin’s Creed installing time CTC error appeared

Hi experts,
During the install of my new bought game Assassin’s Creed this error appeared and the single available option is to Abort. If I click Retry and Ignore it appears again, these two options not working. Should I return the game to the merchant? Is an error with my Windows 7?
Thank you!

CTC Error
CRC error: The file C:Program Files (x86)Ubisoft Assassin’s Creed BrotherhoodSoundDatapcsounds_sfx.pck 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.
Abort Retry Ignore
