If you experience an error when copying both the Ethno.dat and Ethno.ufs file from the DVD to your hard drive, you may see the icon for one or both files disappear from DVD in the Finder. In this case, we recommend ejecting the DVD and reinserting it, then copying one file at a time.

If you have an alternate DVD drive available, try using it to copy the Ethno.dat and Ethno.ufs files to your hard drive instead.