[theducks]

Hmm. I have another one

<?xml version='1.0' encoding='utf-8'?>
<package xmlns="http://www.idpf.org/2007/opf" unique-identifier="uuid_id">
    <metadata xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:opf="http://www.idpf.org/2007/opf">
        <dc:identifier opf:scheme="calibre" id="calibre_id">1314</dc:identifier>
        <dc:identifier opf:scheme="uuid" id="uuid_id">bc2caf28-8858-400f-a224-95f99b5b04dc</dc:identifier>
        <dc:title>Carousel Tides</dc:title>
        <dc:contributor opf:file-as="calibre" opf:role="bkp">calibre (0.7.23) [http://calibre-ebook.com]</dc:contributor>
        <dc:date>2010-10-13T09:03:31+00:00</dc:date>
        <dc:language>en</dc:language>
        <meta content="2010-10-13T09:03:31+00:00" name="calibre:timestamp"/>
        <meta content="Carousel Tides" name="calibre:title_sort"/>
        <meta name="calibre:user_metadata:#edited" content="{&quot;is_category&quot;: false, &quot;colnum&quot;: 1, &quot;kind&quot;: &quot;field&quot;, &quot;is_custom&quot;: true, &quot;name&quot;: &quot;Edited Format&quot;, &quot;#extra#&quot;: null, &quot;datatype&quot;: &quot;datetime&quot;, &quot;rec_index&quot;: 20, &quot;search_terms&quot;: [&quot;#edited&quot;], &quot;#value#&quot;: null, &quot;link_column&quot;: &quot;value&quot;, &quot;label&quot;: &quot;edited&quot;, &quot;is_editable&quot;: true, &quot;column&quot;: &quot;value&quot;, &quot;is_multiple&quot;: null, &quot;category_sort&quot;: &quot;value&quot;, &quot;table&quot;: &quot;custom_column_1&quot;, &quot;display&quot;: {&quot;date_format&quot;: &quot;MM/dd/yyyy&quot;}}"/>
        <meta name="calibre:user_metadata:#usertags" content="{&quot;is_category&quot;: true, &quot;colnum&quot;: 2, &quot;kind&quot;: &quot;field&quot;, &quot;is_custom&quot;: true, &quot;name&quot;: &quot;User Tags&quot;, &quot;#extra#&quot;: null, &quot;datatype&quot;: &quot;text&quot;, &quot;rec_index&quot;: 21, &quot;search_terms&quot;: [&quot;#usertags&quot;], &quot;#value#&quot;: [], &quot;link_column&quot;: &quot;value&quot;, &quot;label&quot;: &quot;usertags&quot;, &quot;is_editable&quot;: true, &quot;column&quot;: &quot;value&quot;, &quot;is_multiple&quot;: &quot;|&quot;, &quot;category_sort&quot;: &quot;value&quot;, &quot;table&quot;: &quot;custom_column_2&quot;, &quot;display&quot;: {}}"/>
        <meta name="calibre:user_metadata:#read" content="{&quot;is_category&quot;: false, &quot;colnum&quot;: 3, &quot;kind&quot;: &quot;field&quot;, &quot;is_custom&quot;: true, &quot;name&quot;: &quot;Read&quot;, &quot;#extra#&quot;: null, &quot;datatype&quot;: &quot;bool&quot;, &quot;rec_index&quot;: 22, &quot;search_terms&quot;: [&quot;#read&quot;], &quot;#value#&quot;: null, &quot;link_column&quot;: &quot;value&quot;, &quot;label&quot;: &quot;read&quot;, &quot;is_editable&quot;: true, &quot;column&quot;: &quot;value&quot;, &quot;is_multiple&quot;: null, &quot;category_sort&quot;: &quot;value&quot;, &quot;table&quot;: &quot;custom_column_3&quot;, &quot;display&quot;: {}}"/>
    </metadata>
    <guide>
        <reference href="cover.jpg" type="cover" title="Cover"/>
    </guide>
</package>

It has the index_number of the last book added to the Library.
I drag and drop when I add, fixing Metadata as I go
I DID edit the tags (list) originally that came with the EPUB file (Baen)