Metadata tag dc:title overwritten on transfer to Kobo Touch

[Npnth]

Hi,

In the past few days (first noticed with 0.8.65, still noticed with 0.8.66), I've noticed that all the files I transfer to my Kobo Touch aren't showing up with the correct titles - they appear as "Unknown," even though the epub is correctly named in the file structure, in my calibre library, and even in the epub file stored on my computer.

For reference, here is the output of a diff between the contents of the epub in my calibre library and the contents of the epub as it appears on my device.

diff -rupN calibre/content.opf kobo/content.opf
--- calibre/content.opf 2012-08-28 11:19:20.000000000 -0400
+++ kobo/content.opf    2012-08-28 11:19:20.000000000 -0400
@@ -1,18 +1,21 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0"  encoding="UTF-8"?>
 <package xmlns="http://www.idpf.org/2007/opf" version="2.0" unique-identifier="uuid_id">
   <metadata xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:opf="http://www.idpf.org/2007/opf" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:calibre="http://calibre.kovidgoyal.net/2009/metadata" xmlns:dc="http://purl.org/dc/elements/1.1/">
-    <meta name="calibre:title_sort" content="Brothers Karamazov, The"/>
-    <meta name="calibre:rating" content="4.00"/>
-    <dc:language>en</dc:language>
-    <dc:creator opf:file-as="Dostoyevsky, Fyodor" opf:role="aut">Fyodor Dostoyevsky</dc:creator>
+    <dc:creator opf:role="aut" opf:file-as="Dostoyevsky, Fyodor">Fyodor Dostoyevsky</dc:creator>
+<meta name="calibre:title_sort" content="Brothers Karamazov, The"/>
+    <meta name="calibre:rating" content="4"/>
     <meta name="calibre:timestamp" content="2012-06-19T16:26:54+00:00"/>
-    <dc:title>The Brothers Karamazov</dc:title>
+    <dc:title>Unknown</dc:title>
     <meta name="cover" content="cover"/>
     <dc:date>2012-06-20T16:26:54+00:00</dc:date>
     <dc:contributor opf:role="bkp">calibre (0.8.65) [http://calibre-ebook.com]</dc:contributor>
     <dc:identifier opf:scheme="ISBN">0553212168</dc:identifier>
     <dc:identifier id="uuid_id" opf:scheme="uuid">72b1b157-163f-48c0-a71b-ba91897bf3af</dc:identifier>
-  </metadata>
+  <meta name="calibre:user_categories" content="{}"/>
+<meta name="calibre:author_link_map" content="{&quot;Fyodor Dostoyevsky&quot;: &quot;&quot;}"/>
+<dc:language>en</dc:language>
+<meta name="calibre:user_metadata:#series" content="{&quot;is_category&quot;: false, &quot;#extra#&quot;: null, &quot;kind&quot;: &quot;field&quot;, &quot;is_custom&quot;: true, &quot;is_csp&quot;: false, &quot;colnum&quot;: 1, &quot;column&quot;: &quot;value&quot;, &quot;rec_index&quot;: 22, &quot;search_terms&quot;: [&quot;#series&quot;], &quot;link_column&quot;: &quot;value&quot;, &quot;is_multiple2&quot;: {}, &quot;is_multiple&quot;: null, &quot;datatype&quot;: &quot;float&quot;, &quot;#value#&quot;: null, &quot;category_sort&quot;: &quot;value&quot;, &quot;table&quot;: &quot;custom_column_1&quot;, &quot;is_editable&quot;: true, &quot;label&quot;: &quot;series&quot;, &quot;display&quot;: {}, &quot;name&quot;: &quot;Series#&quot;}"/>
+        </metadata>
   <manifest>
     <item href="cover.jpeg" id="cover" media-type="image/jpeg"/>
     <item href="OEBPS/text/content002.xhtml" id="content002.xhtml" media-type="application/xhtml+xml"/>
Binary files calibre/cover.jpeg and kobo/cover.jpeg differ

As you can see, the content.opf seems to be modified in transit. I'm not sure if this happens with any other versions.

[Npnth]

Sorry for the chatter, this was the result of a plugboard I was using. I had been using

{series:re(([^\s])[^\s]+(\s|$),\1)}{series_index:0>2s| - | - }

instead of

{series:re(([^\s])[^\s]+(\s|$),\1)}{series_index:0>2s| - | - }{title}

[DoctorOhh]

Originally Posted by Npnth

Sorry for the chatter, this was the result of a plugboard I was using. I had been using

{series:re(([^\s])[^\s]+(\s|$),\1)}{series_index:0>2s| - | - }

instead of

{series:re(([^\s])[^\s]+(\s|$),\1)}{series_index:0>2s| - | - }{title}

What you are seeing seems to be to be expected behavior for your metadata plugboard.

If you just put series in the title then books without a series would be labeled as unknown because there is nothing to place in the title. Why did you remove {title} from the plugboard?

[Npnth]

I don't recall ever touching that plugboard since I set it up, though evidently I remember wrong, because at one point must have been set up correctly, and then it was set up incorrectly. This was entirely user error.