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Old 10-26-2016, 02:38 AM   #1
Sarmat89
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Corrupted EPUB file?

I've downloaded a sample EPUB3 file, but it cannot be open by ADE 4.5.2, which reports unspecified 'errors'. I thought ADE supports EPUB v3, is it a software bug or the file is indeed corrupt?
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File Type: epub moby_dick_herman_melville_epub3.epub (1.55 MB, 33 views)
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Old 10-26-2016, 03:41 AM   #2
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I opened it with ADE 4.5.1 with no errors.
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Old 10-26-2016, 04:10 AM   #3
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Quote:
Originally Posted by fbrzvnrnd View Post
I opened it with ADE 4.5.1 with no errors.
Unfortunately, this file (and many other valid epub3 files) won't open with ADE 4.5.2.
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Old 10-26-2016, 05:48 AM   #4
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Quote:
Originally Posted by Sarmat89 View Post
I've downloaded a sample EPUB3 file, but it cannot be open by ADE 4.5.2, which reports unspecified 'errors'. I thought ADE supports EPUB v3, is it a software bug or the file is indeed corrupt?
I have ADE 4.5.2.151207 and opened without any problem. I suggest you upgrade version.
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Old 10-26-2016, 07:56 AM   #5
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Quote:
Originally Posted by bravosx View Post
I have ADE 4.5.2.151207 and opened without any problem. I suggest you upgrade version.
I too have ADE 4.5.2.151207 installed and wasn't able to open the book.
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Old 10-26-2016, 08:33 AM   #6
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I too have ADE 4.5.2.151207 installed and wasn't able to open the book.
ADE is installed on the Windows 10 version of Home 1607 system 64 bit
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Old 10-26-2016, 11:07 AM   #7
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Try importing it into Calibre and doing an "ePub to ePub" format conversion.
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Old 10-26-2016, 11:12 AM   #8
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Quote:
Originally Posted by HarryT View Post
Try importing it into Calibre and doing an "ePub to ePub" format conversion.
The test file is a valid epub3 file that passes epubcheck; doing an "ePub to ePub" format conversion with Calibre will cause data loss because, AFAIK, Calibre doesn't support epub3 as the output format.
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Old 10-26-2016, 11:32 AM   #9
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Originally Posted by Doitsu View Post
The test file is a valid epub3 file that passes epubcheck; doing an "ePub to ePub" format conversion with Calibre will cause data loss because, AFAIK, Calibre doesn't support epub3 as the output format.
My apologises. I'd overlooked that it was an ePub 3 file. It's probably fair to say that ePub 3 support in mainstream readers - with the possible exception of iBooks - is patchy. It would be as well to stick with ePub 2 unless there's some compelling reason to use ePub 3.
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Old 10-26-2016, 12:09 PM   #10
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Quote:
Originally Posted by bravosx View Post
ADE is installed on the Windows 10 version of Home 1607 system 64 bit
I have exactly the same OS and only recently noticed that some epub3 books failed to load after the latest round of Windows 10 updates. I.e. this is most likely an OS issue.

@Sarmat89: If you have Chrome/Chromium installed try the Readium extension or the standalone Azardi app. Both open your test epub just fine.
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Old 10-26-2016, 04:59 PM   #11
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I downloaded the attachment and it loaded fine on my Windows 64 bit version 10 running the same 4.5.2 as others have noted.

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Old 10-31-2016, 03:37 AM   #12
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Quote:
Originally Posted by Sarmat89 View Post
I've downloaded a sample EPUB3 file, but it cannot be open by ADE 4.5.2, which reports unspecified 'errors'. I thought ADE supports EPUB v3, is it a software bug or the file is indeed corrupt?
I downloaded the attachment to my iPad. The EPUB3 file "Moby-Dick" can be opened by (the latest version of) iBooks, Kobo, MapleRead, Hyphen, Marvin 3 and Bluefire Reader. However, they don't behave the same (at least) as far as Table of Contents is concerned. While the first four iOS apps display all the 141 TOC entries, including the 135 chapter titles, the last two apps fail to do so and display an empty TOC.

Why? It's because a different TOC (navigation map) representation is used by EPUB3. Any reader app that claims any EPUB3 support should at least support this new TOC representation. Apparently, two big-company apps (iBooks, Kobo) and two small-team apps (MapleRead, Hyphen) have such basic EPUB3 support, while the other two small-team apps (Marvin 3, Bluefire Reader) don't.
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