Sorry for the rapid fire blogging. A co-worker just sent me this link, and I thought I'd share.
I've tried to explain this process to a lot of people. Growing up there was a book at the library that described the process pretty well. I checked out that book over and over and memorzed it (it was showing an April Wine LP being manufactured. How's that for memory?) Since I don't remember the title of the book, this is the next best thing.