I will send the exact info on to Larry privately, but wanted the list to know that the number of non format 4 books is not as high as it felt when trying to nab one here and there for listening. I have some fifty books in my library, and I think 6 are non format 4. I'd say that's not so bad after all, and the issue may not be as worrisome as it appeared at first glance. Thanks to APH for taking the time to review this issue. Marlaina Lieberg