Import Metadata tool Not working

I have about 250 Feature class files that need Metadata added to them. I thought that you could create the metadata for 1 and then import that into the rest of them by using the Import button in the metadata description in Arc Catalog. I have tried this and it does nothing. I have also tried exporting an .XML file and using the import from .XML but nothing happens again. Is this a bug in 10.1. If so ESRi can you please putting stuff on the internet of how easy handleing metadata is with Arc 10.

Has anyone got any ideas before I embark on a very boring week of copying and pasting metadata.

Thanks.