•  http://www.dvddemystified.com
•  http://www.dvddemystifiziert.de

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•  http://www.dvd-replica.com/DVD/vtscolors.php
•  http://www.dvd-replica.com/DVD/dvdprimer.php
•  http://www.dvd-replica.com/DVD/dvdprimer-13.php

Specs

•  http://www.dvd-replica.com/DVD/orderdvd.php
•  http://dvd.wwwdotorg.org/specs/specs.html
•  http://www.dvdburning.biz/dvd-specifications.htm

Books

•  DVD Demystified
•  Blu-Ray Disc Demystified
•  HD-DVD Demystified