+<section>
+ <title>Should I encrypt?</title>
+
+ <para>
+ The question of whether encryption is appropriate for a given
+ project is a tricky one.
+ </para>
+
+ <para>
+ On the one hand, if you distribute an unencrypted DCP it is easy for
+ anybody to take it and do whatever they want with its contents.
+ They could use DCP-o-matic to convert it to a MP4, show it in
+ their cinema, or even edit and redistribute it in ways that you
+ do not like.
+ </para>
+
+ <para>
+ Encryption prevents this, but brings its own problems. It will be
+ impossible for a cinema to screen your DCP unless they have the
+ correct KDM. This is easy enough if things work as they should,
+ but problems can occur. For example, cinemas may substitute
+ broken playout servers with new ones without telling you: then the
+ KDM that you sent them will be invalid, and a new one required.
+ If the cinema can't get in touch with you, or somebody else who
+ can create a new KDM, they can't screen your DCP. Often these
+ problems are only discovered very close to showtime, with little
+ time for fixes.
+ </para>
+
+ <para>
+ If you are distributing encrypted DCPs widely it is worth thinking
+ about who will make the KDMs, and who will provide quick-response
+ technical support. It may be a good idea to engage a company who can
+ provide such services.
+ </para>
+
+</section>
+
+