Andrea, splitting the chapters is probably a good idea. Sorry, but I am falling behind and will try to get back to you about a better image as requested in your next email and the clarify the references below SOON. Thanks for your patience! Phyllis

I have added chapters 12 and 13. I have taken the initiative of
splitting the original chapter 13 into two new chapters (12 and 13,
precisely), because I consider them huge and autonomous.
Phyllis, if you prefer a single chapter, with Latex it is very simple
and fast to reunite them.
In the DVD/BD chapter there are three references to 8.3.4 and 8.3.5,
but I don't understand what they mean.