Roller Coaster Tycoon 2 Install Problem

When i am trying to install rtc2 on my computer (it hasnt been installed) there is an error saying "error: cyclic redundancy check"
i dont know what that means but i need help and i have no clue why it wont let me load it on my computer.... i have installed it on other computers so i know it works.... PLEAZE HELP ME!!!!