The book co-created with many people who joined in the workshops that are graphically portrayed in the book.

There are many worked examples and illustrations of the process and outcomes.

I particularly like the iconography in some of the workshops and will include them into my repertoire.

A little more detail on the process and a prescription of how to run the workshops would take the book from great to excellent.

Business model generation: A Handbook for Visionaries, Game Changers, and Challengersalexander osterwalder; Wiley 2010WorldCat•LibraryThing•Google Books•BookFinder

DVD ripping has been possible for many years after the CSS (Content Scrambling System) encryption keys were compromised and DeCSS was created.

The digital rights management industry has learned that “security by obscurity” is not security at all. Most users of CSS cracking software claim it is used to defeat region encoding that stops DVDs being played outside their target market.Blu-ray (and HD-DVD) were designed with better encryption, AACS (Advanced Access Content System) from the outset but this still was compromised.

The technology also includes HDCP (High-bandwidth Digital Content Protection) which prevents digital recording equipment from recording the content by requiring the player and the television create a secure channel for the media.Blu-ray players feature extensible protection so the scrambling system can be upgraded so new titles can be better protected against copying.

This feature could be the reason that the studios preferred Blu-ray over HD-DVD.

The latest copy protection mechanism for Blu-ray is BD+ which 18 months ago was hailed as protection that will take 10 years to break. It features a virtual machine that authorized players use to run scripts to access the content. This virtual machine deliberately makes reverse engineering difficult by changing the way instructions are executed depending on the context.

Proving that nothing is unbreakable, SlySoft has cracked the latest BD+ scrambling system and can copy all existing titles as noted in this press release: http://forum.slysoft.com/showthread.php?t=24602 Macrovision, who develop the BD+ scrambling system, will no doubt respond in due course with better technology to defeat SlySoft.

The lesson here is that continuous development is required to protect digital rights.But overall, is digital rights management worth all the inconvenience to the customer?