System 7: Compatibility Checker 1.0 Thinks Numeric HD Name Is ID

Compatibility Checker 1.0 does not run properly on a hard drive that has only numeric characters as the volume name.
This is a known issue. This is a HyperCard limitation and cannot be fixed through Compatibility Checker itself. The program thinks that the numeric string, used as a hard-drive name, is a HyperCard button ID rather than a volume name.

The workaround is to rename the hard drive with a non-numeric name before running the Compatibility Checker.
Published Date: Feb 18, 2012