AZW/MOBI file will not convert to anything else

tomsem · 04-13-2023, 01:50 PM

I have an AZW/MOBI file will not convert to anything (tried AZW3, EPUB2, EPUB3. Always gets stuck on 'Flattening...' step. It is fairly large (59.2MB). It loaded in Viewer. Downloaded fresh copy from Amazon, same thing.

Anything to check/try?

Thank you.

Spoiler:

Quoth · 04-13-2023, 03:30 PM

Is it a Fixed layout type? If so it may not convert.
"not encrypted", hmm.
Or maybe it's reflowable and too big.

My Verne incomplete "Complete Works" is 10.3 Mbyte and azw3 and converted OK.
Seems to be same 47 novels as yours (but cheaper).
https://www.amazon.co.uk/gp/product/B0777TKN3L/
Converted fine.

Quoth · 04-13-2023, 03:38 PM

I also have Celebrated Travels and Travellers in 3 parts (maybe from Gutenberg), 55.9, 51.1 and 48.6 and all converted. (2008 version, downloaded August 2021).
Just searched:
https://www.gutenberg.org/ebooks/sea...t_search=Go%21
Seems that's where those came from.
Total 75 ebooks credited to Verne in the Calibre Library.

Only The castle of the Carpathians and Jules Verne: The Collection (20.000 Leagues Under the Sea, Journey to the Interior of the Earth, Around the World in 80 Days, The Mysterious Island...) from Amazon. The rest are PD. Some From Standard eBooks.

tomsem · 04-13-2023, 07:03 PM

Thanks, I've started getting these direct from the Delphi (ePub). For another $1 they include 'parts' (separate files for each book).

I tried another large omnibus MOBI from a different publisher with the same result (seems to stall out at 47%), while another similar, large one that starts in AZW3 pauses a bit at 47%, but then continues and finishes. So it seems specific to MOBI. Another common feature: very large ToC (at least 1200 entries).

It's possible it just takes awhile, but job is running for 25 minutes already, and there is no memory pressure or significant CPU load. I'll let it go longer to see if it manages to finish.

Update: still spinning its wheels after 2 hours. "it's dead, Jim"

theducks · 04-13-2023, 09:12 PM

Quote:

Originally Posted by tomsem

Thanks, I've started getting these direct from the Delphi (ePub). For another $1 they include 'parts' (separate files for each book).

I tried another large omnibus MOBI from a different publisher with the same result (seems to stall out at 47%), while another similar, large one that starts in AZW3 pauses a bit at 47%, but then continues and finishes. So it seems specific to MOBI. Another common feature: very large ToC (at least 1200 entries).

It's possible it just takes awhile, but job is running for 25 minutes already, and there is no memory pressure or significant CPU load. I'll let it go longer to see if it manages to finish.

Update: still spinning its wheels after 2 hours. "it's dead, Jim"

47% is a standard 'looks like nothing' point. The next status jump can be MANY many many HOURS (in the past, 24 was not unheard of for very large or complex books. Yours is Large)

tomsem · 04-13-2023, 10:13 PM

Quote:

Originally Posted by theducks

47% is a standard 'looks like nothing' point. The next status jump can be MANY many many HOURS (in the past, 24 was not unheard of for very large or complex books. Yours is Large)

whelp, I guess time heals all things. I can wait, I guess.

It's odd I'm only seeing this with MOBI, however. and only with certain large ones.

BetterRed · 04-13-2023, 10:29 PM

Quote:

Originally Posted by tomsem

whelp, I guess time heals all things. I can wait, I guess.

It's odd I'm only seeing this with MOBI, however. and only with certain large ones.

Not odd at all - depends on how the input file was built - some are linear trees others are cans of worms.

BR

Quoth · 04-14-2023, 06:02 AM

Quote:

Originally Posted by tomsem

Update: still spinning its wheels after 2 hours. "it's dead, Jim"

"only mostly dead" —Miracle Max in "The Princess Bride".

tomsem · 04-14-2023, 03:02 PM

I let it run overnight: 16h36m. I cannot help but think there is something wrong with the calibre code. I may have to take another crack at setting up debugger.

Quoth · 04-14-2023, 03:56 PM

Quote:

Originally Posted by tomsem

I let it run overnight: 16h36m. I cannot help but think there is something wrong with the calibre code. I may have to take another crack at setting up debugger.

Or the ebook. Sadly not azw3 so tricky to peak at innards. I was half tempted to buy the version you got, but apart from the illustrations it seems the same content as the one I got (47 novels)
See https://www.mobileread.com/forums/sh...d.php?t=340548
or
https://www.sffworld.com/forum/threa...inaires.58632/ (same thing if not same poster).
As to why it's not complete and other issues.

slm · 04-15-2023, 10:09 AM

Did you try Kindle Unpack?

Quoth · 04-15-2023, 12:40 PM

Quote:

Originally Posted by slm

Did you try Kindle Unpack?

I thought that was only for azw3?

JSWolf · 04-15-2023, 01:10 PM

Quote:

Originally Posted by Quoth

I thought that was only for azw3?

It's for both Mobi & KF8. But only KF8 can be converted to ePub (with errors).

DNSB · 04-15-2023, 01:18 PM

It'll unpack a mobi but really not much use unless you want to look at the files. I've used it once to unpack a stubborn .mobi file, did a quick and dirty edit on the html file and then imported the html file into Sigil. A quick convert inline CSS into stylesheet and some cleanup finished the job. The author of the ebook did not have her original manuscript and wanted to do some editing for a new edition after the rights reverted.

Quoth · 04-15-2023, 02:27 PM

So for Mobi it's the equivalent of renaming an .epub to .zip and unpacking the archive, which is rather less useful than Sigil or Calibre Editor but lets you see the innards.

However you'd want to be fairly knowledgeable about HTML with inline styles and though a lot of the 59 MB is images, maybe 8 to 10 MByte of Styled HTML files as it's 47 novels. I'd sooner accept my losses and buy the 88p version with same 47 novels that's azw3 and does convert to epub. Then you can always amuse yourself adding the illustrations from the unpacked mobi to your epub version.

04-13-2023, 01:50 PM	#1
tomsem Grand Sorcerer Posts: 6,939 Karma: 27060151 Join Date: Apr 2009 Location: USA Device: iPhone 15PM, Kindle Scribe, iPad mini 6, PocketBook InkPad Color 3	AZW/MOBI file will not convert to anything else I have an AZW/MOBI file will not convert to anything (tried AZW3, EPUB2, EPUB3. Always gets stuck on 'Flattening...' step. It is fairly large (59.2MB). It loaded in Viewer. Downloaded fresh copy from Amazon, same thing. Anything to check/try? Thank you. Spoiler: Convert book 1 of 1 (Complete Works of Jules Verne) DeDRM v10.0.3: Trying to decrypt 3_3j_tmw.mobi Using Library AlfCrypto Python MobiDeDrm v1.1. Copyright © 2008-2020 The Dark Reverser, Apprentice Harper et al. Decrypting Mobipocket 5 ebook: Delphi Complete Works of Jules Verne (Illustrated) Found 4 keys to try after 0.2 seconds Crypto Type is: 0 This book is not encrypted. Decryption succeeded after 0.2 seconds DeDRM v10.0.3: Finished after 0.3 seconds Conversion options changed from defaults: output_profile: 'ipad3' read_metadata_from_opf: '/var/folders/1c/s6n482rn5fs_ls6v8cdnqr5r0000gr/C/calibre_6.15.1_tmp_lgnbftqa/lmw4iosd.opf' verbose: 2 cover: '/var/folders/1c/s6n482rn5fs_ls6v8cdnqr5r0000gr/C/calibre_6.15.1_tmp_lgnbftqa/_f2m4wre.jpeg' epub_version: '3' Resolved conversion options calibre version: 6.15.1 {'asciiize': False, 'author_sort': None, 'authors': None, 'base_font_size': 0.0, 'book_producer': None, 'change_justification': 'original', 'chapter': "//[((name()='h1' or name()='h2') and re:test(., " "'\\s((chapter\|book\|section\|part)\\s+)\|((prolog\|p rologue\|epilogue)(\\s+\|$))', " "'i')) or @class = 'chapter']", 'chapter_mark': 'pagebreak', 'comments': None, 'cover': '/var/folders/1c/s6n482rn5fs_ls6v8cdnqr5r0000gr/C/calibre_6.15.1_tmp_lgnbftqa/_f2m4wre.jpeg', 'debug_pipeline': None, 'dehyphenate': True, 'delete_blank_paragraphs': True, 'disable_font_rescaling': False, 'dont_split_on_page_breaks': False, 'duplicate_links_in_toc': False, 'embed_all_fonts': False, 'embed_font_family': None, 'enable_heuristics': False, 'epub_flatten': False, 'epub_inline_toc': False, 'epub_max_image_size': 'none', 'epub_toc_at_end': False, 'epub_version': '3', 'expand_css': False, 'extra_css': None, 'extract_to': None, 'filter_css': '', 'fix_indents': True, 'flow_size': 260, 'font_size_mapping': None, 'format_scene_breaks': True, 'html_unwrap_factor': 0.4, 'input_encoding': None, 'input_profile': <calibre.customize.profiles.InputProfile object at 0x10dc2b3a0>, 'insert_blank_line': False, 'insert_blank_line_size': 0.5, 'insert_metadata': False, 'isbn': None, 'italicize_common_cases': True, 'keep_ligatures': False, 'language': None, 'level1_toc': None, 'level2_toc': None, 'level3_toc': None, 'line_height': 0.0, 'linearize_tables': False, 'margin_bottom': 5.0, 'margin_left': 5.0, 'margin_right': 5.0, 'margin_top': 5.0, 'markup_chapter_headings': True, 'max_toc_links': 50, 'minimum_line_height': 120.0, 'no_chapters_in_toc': False, 'no_default_epub_cover': False, 'no_inline_navbars': False, 'no_svg_cover': False, 'output_profile': <calibre.customize.profiles.iPad3Output object at 0x10dc2afe0>, 'page_breaks_before': "//[name()='h1' or name()='h2']", 'prefer_metadata_cover': False, 'preserve_cover_aspect_ratio': False, 'pretty_print': True, 'pubdate': None, 'publisher': None, 'rating': None, 'read_metadata_from_opf': '/var/folders/1c/s6n482rn5fs_ls6v8cdnqr5r0000gr/C/calibre_6.15.1_tmp_lgnbftqa/lmw4iosd.opf', 'remove_fake_margins': True, 'remove_first_image': False, 'remove_paragraph_spacing': False, 'remove_paragraph_spacing_indent_size': 1.5, 'renumber_headings': True, 'replace_scene_breaks': '', 'search_replace': '[]', 'series': None, 'series_index': None, 'smarten_punctuation': False, 'sr1_replace': None, 'sr1_search': None, 'sr2_replace': None, 'sr2_search': None, 'sr3_replace': None, 'sr3_search': None, 'start_reading_at': None, 'subset_embedded_fonts': False, 'tags': None, 'timestamp': None, 'title': None, 'title_sort': None, 'toc_filter': None, 'toc_threshold': 6, 'toc_title': None, 'transform_css_rules': '[]', 'transform_html_rules': '[]', 'unsmarten_punctuation': False, 'unwrap_lines': True, 'use_auto_toc': False, 'verbose': 2} DeDRM v10.0.3: Trying to decrypt fjraolmo.mobi MobiDeDrm v1.1. Copyright © 2008-2020 The Dark Reverser, Apprentice Harper et al. Decrypting Mobipocket 5 ebook: Delphi Complete Works of Jules Verne (Illustrated) Found 4 keys to try after 0.1 seconds Crypto Type is: 0 This book is not encrypted. Decryption succeeded after 0.1 seconds DeDRM v10.0.3: Finished after 0.2 seconds InputFormatPlugin: MOBI Input running on /var/folders/1c/s6n482rn5fs_ls6v8cdnqr5r0000gr/C/calibre_6.15.1_tmp_lgnbftqa/hogvg5vu.mobi Extracting text... Adding anchors... Extracting images... Cleaning up HTML... Parsing HTML... Converting style information to CSS... Creating OPF... Parsing all content... Parsing styles.css ... Parsing index.html ... Forcing index.html into XHTML namespace Reading TOC from NCX... Merging user specified metadata... Detecting structure... Flattening CSS and remapping font sizes... Last edited by theducks; 04-13-2023 at 02:27 PM. Reason: Please use SPOILER for logs*

04-13-2023, 07:03 PM	#4
tomsem Grand Sorcerer Posts: 6,939 Karma: 27060151 Join Date: Apr 2009 Location: USA Device: iPhone 15PM, Kindle Scribe, iPad mini 6, PocketBook InkPad Color 3	Thanks, I've started getting these direct from the Delphi (ePub). For another $1 they include 'parts' (separate files for each book). I tried another large omnibus MOBI from a different publisher with the same result (seems to stall out at 47%), while another similar, large one that starts in AZW3 pauses a bit at 47%, but then continues and finishes. So it seems specific to MOBI. Another common feature: very large ToC (at least 1200 entries). It's possible it just takes awhile, but job is running for 25 minutes already, and there is no memory pressure or significant CPU load. I'll let it go longer to see if it manages to finish. Update: still spinning its wheels after 2 hours. "it's dead, Jim" Last edited by tomsem; 04-13-2023 at 08:41 PM.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Calibre cannot convert AZW file (locked by DRM)	Crescendo63	General Discussions	16	11-21-2018 02:42 PM
how to auto convert to azw instead of mobi sending to kindle?	gennaro	Calibre	3	06-14-2013 03:59 PM
How to convert Mobi file to RTL - Hebrew	ilana.heller	Amazon Kindle	3	09-02-2012 04:49 AM
Can't convert .doc file to .mobi	lasteresitas	Calibre	2	12-21-2010 05:00 PM
Can Calibre convert .azw1 or .tpz to .mobi or .azw?	robcohen	Calibre	3	08-30-2009 05:17 PM

04-13-2023, 03:30 PM	#2
Quoth Still reading Posts: 14,016 Karma: 105092227 Join Date: Jun 2017 Location: Ireland Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper	Is it a Fixed layout type? If so it may not convert. "not encrypted", hmm. Or maybe it's reflowable and too big. My Verne incomplete "Complete Works" is 10.3 Mbyte and azw3 and converted OK. Seems to be same 47 novels as yours (but cheaper). https://www.amazon.co.uk/gp/product/B0777TKN3L/ Converted fine.

04-13-2023, 03:38 PM	#3
Quoth Still reading Posts: 14,016 Karma: 105092227 Join Date: Jun 2017 Location: Ireland Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper	I also have Celebrated Travels and Travellers in 3 parts (maybe from Gutenberg), 55.9, 51.1 and 48.6 and all converted. (2008 version, downloaded August 2021). Just searched: https://www.gutenberg.org/ebooks/sea...t_search=Go%21 Seems that's where those came from. Total 75 ebooks credited to Verne in the Calibre Library. Only The castle of the Carpathians and Jules Verne: The Collection (20.000 Leagues Under the Sea, Journey to the Interior of the Earth, Around the World in 80 Days, The Mysterious Island...) from Amazon. The rest are PD. Some From Standard eBooks.

04-14-2023, 03:02 PM	#9
tomsem Grand Sorcerer Posts: 6,939 Karma: 27060151 Join Date: Apr 2009 Location: USA Device: iPhone 15PM, Kindle Scribe, iPad mini 6, PocketBook InkPad Color 3	I let it run overnight: 16h36m. I cannot help but think there is something wrong with the calibre code. I may have to take another crack at setting up debugger.

04-15-2023, 10:09 AM	#11
slm Fool Posts: 468 Karma: 4113712 Join Date: Feb 2003 Device: Kindle: Voyage,PW1,KOA, Kobo: Clara Colour, Nook GLP, Pocketbook verse	Did you try Kindle Unpack?

04-15-2023, 01:18 PM	#14
DNSB Bibliophagist Posts: 46,168 Karma: 168983734 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos	It'll unpack a mobi but really not much use unless you want to look at the files. I've used it once to unpack a stubborn .mobi file, did a quick and dirty edit on the html file and then imported the html file into Sigil. A quick convert inline CSS into stylesheet and some cleanup finished the job. The author of the ebook did not have her original manuscript and wanted to do some editing for a new edition after the rights reverted.

04-15-2023, 02:27 PM	#15
Quoth Still reading Posts: 14,016 Karma: 105092227 Join Date: Jun 2017 Location: Ireland Device: All 4 Kinds: epub eink, Kindle, android eink, NxtPaper	So for Mobi it's the equivalent of renaming an .epub to .zip and unpacking the archive, which is rather less useful than Sigil or Calibre Editor but lets you see the innards. However you'd want to be fairly knowledgeable about HTML with inline styles and though a lot of the 59 MB is images, maybe 8 to 10 MByte of Styled HTML files as it's 47 novels. I'd sooner accept my losses and buy the 88p version with same 47 novels that's azw3 and does convert to epub. Then you can always amuse yourself adding the illustrations from the unpacked mobi to your epub version.