Problem with cover images

[roddy20]

something is wrong here

cat ebook2.opf
<?xml version='1.0' encoding='utf-8'?>
<package xmlns="http://www.idpf.org/2007/opf" unique-identifier="uuid_id" version="2.0">
    <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">e8a0cb70-0171-441b-baed-ecf96eefc0ca</dc:identifier>
        <dc:identifier opf:scheme="uuid" id="uuid_id">4ece2df4-c781-4e8c-ba64-db328d2d0b8e</dc:identifier>
        <dc:title>Flowers for Algernon</dc:title>
        <dc:creator opf:file-as="Unknown" opf:role="aut">Daniel Keyes</dc:creator>
        <dc:contributor opf:file-as="calibre" opf:role="bkp">calibre (8.5.0) [https://calibre-ebook.com]</dc:contributor>
        <dc:date>2025-04-23T00:00:00+00:00</dc:date>
        <dc:description>&lt;p&gt;"Flowers for Algernon" ...</dc:description>
        <dc:identifier opf:scheme="AMAZON">B0F67MCLJH</dc:identifier>
        <dc:language>eng</dc:language>
        <meta name="calibre:rating" content="4.6"/>
    </metadata>
    <guide>
        <reference type="cover" title="Cover" href="cover.jpg"/>
    </guide>
</package>

B0F67MCLJH is correct ASIN
but
I execute
ebook-meta Flowers\ for\ Algernon\ -\ 1966.azw3 --from-opf=ebook2.opf

and nothing changes

Title               : Flowers for Algernon
Author(s)           : Daniel Keyes
Publisher           : Houghton Mifflin Harcourt
Book Producer       : calibre (8.5.0) [https://calibre-ebook.com]
Tags                : Retail, Personal, 049 Top 100 Sci-Fi
Languages           : eng
Published           : 2025-04-23T00:00:00+00:00
Rights              : Please read the legal notice included in this e-book and/or check the copyright status in your country.
Identifiers         : mobi-asin:946354B1-A92F-1014-A12F-D112ACF0CF36
Comments            : <p>"Flowers for Algernon" is a poignant science fiction novel ...</p>

how to write ASIN to book?

[kovidgoyal]

ebook-meta --identifier amazon:whatever

[roddy20]

Originally Posted by kovidgoyal

ebook-meta --identifier amazon:whatever

thanks
but no change

/Applications/calibre.app/Contents/MacOS/ebook-meta Daniel\ Keyes\ -\ Flowers\ for\ Algernon\ -\ 1966.azw3 --identifier amazon:B0F67MCLJH
Original metadata::
	Title               : Flowers for Algernon
	Author(s)           : Daniel Keyes
	Publisher           : Houghton Mifflin Harcourt
	Book Producer       : calibre (8.5.0) [https://calibre-ebook.com]
	Tags                : Retail, Personal, 049 Top 100 Sci-Fi
	Languages           : eng
	Published           : 2025-04-23T00:00:00+00:00
	Rights              : Please read the legal notice included in this e-book and/or check the copyright status in your country.
	Identifiers         : mobi-asin:946354B1-A92F-1014-A12F-D112ACF0CF36
	Comments            : <p>"Flowers for Algernon" is a poignant science fiction novel by Daniel Keyes that explores the complexities of human intelligence, love, and the ethical implications of scientific experimentation. The story revolves around Charlie Gordon, a mentally challenged man in his thirties, who is chosen to undergo an experimental surgery aimed at increasing his intelligence. As the procedure is conducted, readers are introduced to Charlie's journey through progress and regression, told through a series of journal entries that reveal his evolving self-awareness and emotional depth.</p>
	<p>The title references Algernon, a laboratory mouse who undergoes the same procedure and serves as both a companion and a metaphor for Charlie's own struggles. As Charlie’s intelligence blossoms, he grapples with new relationships, the isolation it brings, and the painful awareness of his past and present. However, the narrative takes a heart-wrenching turn as the effects of the surgery begin to fade, prompting profound questions about the nature of intellect, the value of human connections, and the inevitability of change.</p>
	<p>Keyes’ profound exploration of human dignity, the importance of memory, and the quest for understanding makes "Flowers for Algernon" an enduring classic that resonates deeply with readers. It's a powerful reflection on what it means to be truly human and the fragility of our existence.</p>

Changed metadata::
	Title               : Flowers for Algernon
	Author(s)           : Daniel Keyes
	Publisher           : Houghton Mifflin Harcourt
	Book Producer       : calibre (8.5.0) [https://calibre-ebook.com]
	Tags                : Retail, Personal, 049 Top 100 Sci-Fi
	Languages           : eng
	Published           : 2025-04-23T00:00:00+00:00
	Rights              : Please read the legal notice included in this e-book and/or check the copyright status in your country.
	Identifiers         : mobi-asin:946354B1-A92F-1014-A12F-D112ACF0CF36
	Comments            : <p>"Flowers for Algernon" is a poignant science fiction novel by Daniel Keyes that explores the complexities of human intelligence, love, and the ethical implications of scientific experimentation. The story revolves around Charlie Gordon, a mentally challenged man in his thirties, who is chosen to undergo an experimental surgery aimed at increasing his intelligence. As the procedure is conducted, readers are introduced to Charlie's journey through progress and regression, told through a series of journal entries that reveal his evolving self-awareness and emotional depth.</p>
	<p>The title references Algernon, a laboratory mouse who undergoes the same procedure and serves as both a companion and a metaphor for Charlie's own struggles. As Charlie’s intelligence blossoms, he grapples with new relationships, the isolation it brings, and the painful awareness of his past and present. However, the narrative takes a heart-wrenching turn as the effects of the surgery begin to fade, prompting profound questions about the nature of intellect, the value of human connections, and the inevitability of change.</p>
	<p>Keyes’ profound exploration of human dignity, the importance of memory, and the quest for understanding makes "Flowers for Algernon" an enduring classic that resonates deeply with readers. It's a powerful reflection on what it means to be truly human and the fragility of our existence.</p>

[roddy20]

I managed to see books with covers
but I need to copy paste each ASIN in Calibre GUI from Amazon site

I want to make a bash loop with command line utility
and something goes wrong

[roddy20]

Originally Posted by DNSB

While the ISBN may be valid, that mobi-asin is not even close to a valid ASIN. An ASIN is a 10 character string not a string that looks like a GUID. A sample of an ASIN would be B0BSRFPQXV.

a lot of books have ASIN=UUID, maybe, needs to be removed if not 10 symbols
(?)

[roddy20]

Originally Posted by kovidgoyal

ebook-meta --identifier amazon:whatever

thanks again
is there an option to remove?
something like

ebook-meta --identifier mobi-asin:

I tried but nothing changes ((

[kovidgoyal]

Read ebook-meta --help it tells you exactly how to remove identifiers and when removing is not allowed.

[roddy20]

Originally Posted by kovidgoyal

Read ebook-meta --help it tells you exactly how to remove identifiers and when removing is not allowed.

I did ))
To remove
an identifier, specify no value, --identifier isbn:
Note that for EPUB files, an identifier marked as the
package identifier cannot be removed.

but my file is AZW not EPUB, cannot remove these UUIDs

ebook-meta file --identifier mobi-asin:
seems to be correct (?)

[chaley]

Originally Posted by roddy20

I did ))
ebook-meta file --identifier mobi-asin:

@Kovid, I wonder if the problem is the minus in the identifier confusing the options parser.

@roddy20: does it work if you use if you use

ebook-meta file --identifier "mobi-asin:"

[kovidgoyal]

That's likely specific to the kind formats. They dont support generic identifiers only a single asin and ebook-meta cant update that, as it is designed to work with generic identifiers. It will work fine in an EPUB or PDF or KEPUB file.

[roddy20]

Originally Posted by JSWolf

The .mobi that Kindlegen makes is a dual-format file. It included KF8 (AZW3) and Mobi in one file. If the Kindle in use cannot use KF8, it uses the Mobi and if it can use KF8, that's what it uses.

With calibre, you should never convert o Mobi unless you have a K1, K2, or KDX/KDXG.

How to explain this?
Mobi is smaller
Converted from Calibre GUI not command

[roddy20]

Originally Posted by kovidgoyal

That's likely specific to the kind formats. They dont support generic identifiers only a single asin and ebook-meta cant update that, as it is designed to work with generic identifiers. It will work fine in an EPUB or PDF or KEPUB file.

Hello
One more question
"Welcome wizard: Change default output format to AZW3 for Kindle as MOBI is obsolete and all Kindles released within the last decade plus support AZW3"

deleted all the preferences, run Welcome Wizard again - default format is still mobi
No Kindle at all, just generic device

[roddy20]

Originally Posted by kovidgoyal

That's likely specific to the kind formats. They dont support generic identifiers only a single asin and ebook-meta cant update that, as it is designed to work with generic identifiers. It will work fine in an EPUB or PDF or KEPUB file.

A very good way is copy ASIN from amazon store manually, then download data and cover
but it is not automatic ((
even if I check prefer kindle edition - the program selects audiobook by default (or the first in the list) not kindle

[theducks]

Originally Posted by roddy20

How to explain this?
Mobi is smaller
Converted from Calibre GUI not command

Because that Mobi lost many of the formatting that EPUB and AZW3 have.
(old) Mobi was HTML3 based. It had no CSS, All sorts of tricks needed to be done, even to do text positioning. It was a step above Plain Text.

[theducks]

Originally Posted by roddy20

Hello
One more question
"Welcome wizard: Change default output format to AZW3 for Kindle as MOBI is obsolete and all Kindles released within the last decade plus support AZW3"

deleted all the preferences, run Welcome Wizard again - default format is still mobi
No Kindle at all, just generic device

I haven't run the Welcome Wizard in the last ten years and have changed / added devices many times. I use Preferences: Behavior. and Preferences Sending..to Devices Although, that only applies before you first connect a device. From then on, Connect the devise: On the device icon: Configure. (Calibre stores YOUR settings for each device type you use)

Who MAKES a Kindle?