<!DOCTYPE para PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
          "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
<para>
The weekly incremental backup tape is labelled
<medialabel>Backup <replaceable>nn</replaceable></medialabel>, where
<replaceable>nn</replaceable> is the week number.
</para>