Originally Posted by HarryT
Because the Sony pre-paginates the book, and so knows in advance where each page starts. That's why you get the "spinning cursor" when you first open a book, or you select a new font size for the first time. It can be a lengthy process for a long book.
Thank you, Harry, for a factual reply to my query. Very interesting, and I appreciate learning something new. I especially appreciate an answer to a direct question rather than being lectured to about which method is better.
It is not that I "need" page numbers, but that I happen to prefer them, which is why I was curious as to the difference.