Links
Home page for this paper:
http://womble.decadent.org.uk/talks/dvd-ukuug06/
Wikipedia article:
http://en.wikipedia.org/wiki/DVD_authoring
The Unofficial DVD Specifications Guide:
http://www.dvd-replica.com/DVD/orderdvd.php
DVD Forum (if you have plenty of money to spend):
http://www.dvdforum.org