This manual uses icons from the <ulink url="http://tango.freedesktop.org/">Tango Desktop Project</ulink>, with thanks.
</para>
+</section>
+
+<!-- ============================================================== -->
+<section>
+<title>This manual</title>
+
+<para>
+This manual presents bits of DCP-o-matic's user interface (such as menu items or buttons) <guilabel>like this</guilabel>.
+</para>
+
+<note>
+Notes of an advanced nature are presented like this. Ignore them unless you want to know the gory details.
+</note>
+
</section>
</chapter>
doubt, use <guilabel>Modified Transitional 1</guilabel>.
</para>
+<note>
+The differences between the three KDM types are fairly subtle.
+<guilabel>DCI Specific</guilabel> and <guilabel>DCI Any</guilabel> add
+a <code><ContentAuthenticator></code> tag to the KDM which
+allows the exhibitor to check that the DCP and KDM have come from a
+bona-fide source. In addition, <guilabel>DCI Specific</guilabel> adds
+information on trusted devices to the KDM. This allows the KDM
+creator to specify devices (such as sound processors) that are allowed
+to use keys delivered by the KDM. At present it is not clear how
+widely the <guilabel>DCI Specific</guilabel> and <guilabel>DCI
+Any</guilabel> features are supported (or even tolerated) by servers
+so you are advised to use <guilabel>Modified Transitional
+1</guilabel>.
+</note>
+
<para>
Finally, choose what you want to do with the KDMs. They can be
written to disk, to a location that you can specify by clicking
<guilabel>Browse</guilabel>. Alternatively, if you choose
<guilabel>Send by email</guilabel> the KDMs will be zipped up and
-emailed to the appropriate cinema email addresses. Click OK to
-generate the KDMs.
+emailed to the appropriate cinema email addresses. Click
+<guilabel>Make KDMs</guilabel> to generate the KDMs.
</para>
</section>
<guilabel>Jobs</guilabel> menu. Select the CPL that you want to make
the DKDM for and click <guilabel>OK</guilabel>. This DKDM will then
be available in the KDM creator. This is a separate program which you
-can start from the same place that you start the ‘Normal’
+can start from the same place that you start the ‘normal’
DCP-o-matic. Its window is shown in <xref linkend="fig-kdm-creator"/>.
</para>