Metadata current vs content check

I haven't been able to find this anywhere.

Back when I first started using and learning caliber I added books and didn't verify that the metadata downloaded was correct to the book I had. I just accepted it and moved on. Now I am afraid I have a bunch of trashed metadata but I don't want to reload books due to other columns and data I have tracked that would take a lot of time to recreate.

So basically is there a way to search for current metadata being used vs content in the book?