-"Minimum of seconds the Release file should be considered valid after it was "
-"created (indicated by the <literal>Date</literal> header). Use this if you "
-"need to use a seldomly updated (local) mirror of a more regular updated "
-"archive with a <literal>Valid-Until</literal> header instead of completely "
-"disabling the expiration date checking. Archive specific settings can and "
-"should be used by appending the label of the archive to the option name."
+"Several instances of the same version of a package may be available when the "
+"&sources-list; file contains references to more than one source. In this "
+"case <command>apt-get</command> downloads the instance listed earliest in "
+"the &sources-list; file. The APT preferences file does not affect the "
+"choice of instance, only the choice of version."
+msgstr ""
+
+#. type: Content of: <refentry><refsect1><para>
+#: apt_preferences.5.xml:59
+msgid ""
+"Preferences are a strong power in the hands of a system administrator but "
+"they can become also their biggest nightmare if used without care! APT will "
+"not questioning the preferences so wrong settings will therefore lead to "
+"uninstallable packages or wrong decisions while upgrading packages. Even "
+"more problems will arise if multiply distribution releases are mixed without "
+"a good understanding of the following paragraphs. Packages included in a "
+"specific release aren't tested in and therefore doesn't always work as "
+"expected in older or newer releases or together with other packages from "
+"different releases. You have been warned."
+msgstr ""
+
+#. type: Content of: <refentry><refsect1><para>
+#: apt_preferences.5.xml:70
+msgid ""
+"Note that the files in the <filename>/etc/apt/preferences.d</filename> "
+"directory are parsed in alphanumeric ascending order and need to obey the "
+"following naming convention: The files have either no or \"<literal>pref</"
+"literal>\" as filename extension and only contain alphanumeric, hyphen (-), "
+"underscore (_) and period (.) characters. Otherwise APT will print a notice "
+"that it has ignored a file if the file doesn't match a pattern in the "
+"<literal>Dir::Ignore-Files-Silently</literal> configuration list - in this "
+"case it will be silently ignored."
+msgstr ""
+
+#. type: Content of: <refentry><refsect1><refsect2><title>
+#: apt_preferences.5.xml:79
+msgid "APT's Default Priority Assignments"
+msgstr ""
+
+#. type: Content of: <refentry><refsect1><refsect2><para><programlisting>
+#: apt_preferences.5.xml:94
+#, no-wrap
+msgid "<command>apt-get install -t testing <replaceable>some-package</replaceable></command>\n"