In the Pod I notice

Under perl 5.6 and earlier only characters in the Latin-1 range are replaced.

which should be probably replaced by perl 5.005, because perl 5.6 can deal with Unicode characters, at least with the chr(0x0100) syntax.

But later in the code there's require 5.007; so the above sentence could be left completely out.

I hope you're building a proper CPAN distribution before uploading it? And add some tests?