Sourdough, wonderful site, and, actually, it seems many more are indexed and digitized than A to E. It seems when you go to the catalog by title, you are taken first to the A to E page, which is why those letters are 'grayed' out. But if you click on any other letter you'll go to the appropriate page for those titles. As a test, I clicked on and listened to a version of The Two Brothers and it worked fine.