Trying to add a coverage whose name contains Japanese (multi-byte) characters does not work in ArcMap. The Add Data dialog box and ArcCatalog shows squares in place of the Japanese characters. Attempting to add the coverage to a map fails with this message:
"Error opening dataset"
The Japanese characters in the coverage name are not interpreted correctly.
Rename the coverage to not contain Japanese characters. Users must have write permission to the data to do this.