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frquixote · 08-23-2010, 04:15 AM

I finally got around to buying several epubs from my favorite author at Borders. I liberated all of the epubs and did a first verification that they were readable using EPubReader with Firefox. Seven of the eight books looked great.

The last one (which was actually the third in the series) had the Table of Contents run together on five lines of text The rest of the book was basically reduced to run-on paragraphs and headers with no formatting beyond the bolding of the headers. I tested both the original DRM'd version and the de-DRM'd book with ADE and Sony Library readers and both DRM'd and de-DRM'd formatted perfectly. I chalked the formatting errors up to a problem with EPubReader.

When I loaded the de-DRM'd epub to Calibre, I decided to take another look and received the following:

ERROR: Could not open ebook: EPUB files with DTBook markup are not supported

Traceback (most recent call last):
File "site-packages\calibre\gui2\viewer\main.py", line 61, in run
File "threading.py", line 477, in run
File "site-packages\calibre\ebooks\oeb\iterator.py", line 192, in __enter__
File "site-packages\calibre\customize\conversion.py", line 211, in __call__
File "site-packages\calibre\ebooks\epub\input.py", line 152, in convert
ValueError: EPUB files with DTBook markup are not supported

BTW, I decided to load the de-DRM'd epub to my Sony PRS-505 and it reported the book consisted of 1 page, posted a "Page Error" and wouldn't open it. I then tried the DRM'd version and got the same "Page Error" and wouldn't open the book ... even though both ADE and Sony Reader on the PC opened it.

Why am I reporting this here in the Calibre forum? Well, since Calibre was the only software to report the nature of the problem I thought maybe I could get some help here.

08-23-2010, 04:15 AM	#1
frquixote Addict Posts: 230 Karma: 2448688 Join Date: Mar 2006 Location: Kapolei, Oahu, HI Device: KOBO Libra 2, Kindle PW3, Samsung 8A Tablet, Samsung S10e Phone	DTBook markup? I finally got around to buying several epubs from my favorite author at Borders. I liberated all of the epubs and did a first verification that they were readable using EPubReader with Firefox. Seven of the eight books looked great. The last one (which was actually the third in the series) had the Table of Contents run together on five lines of text The rest of the book was basically reduced to run-on paragraphs and headers with no formatting beyond the bolding of the headers. I tested both the original DRM'd version and the de-DRM'd book with ADE and Sony Library readers and both DRM'd and de-DRM'd formatted perfectly. I chalked the formatting errors up to a problem with EPubReader. When I loaded the de-DRM'd epub to Calibre, I decided to take another look and received the following: ERROR: Could not open ebook: EPUB files with DTBook markup are not supported Traceback (most recent call last): File "site-packages\calibre\gui2\viewer\main.py", line 61, in run File "threading.py", line 477, in run File "site-packages\calibre\ebooks\oeb\iterator.py", line 192, in __enter__ File "site-packages\calibre\customize\conversion.py", line 211, in __call__ File "site-packages\calibre\ebooks\epub\input.py", line 152, in convert ValueError: EPUB files with DTBook markup are not supported BTW, I decided to load the de-DRM'd epub to my Sony PRS-505 and it reported the book consisted of 1 page, posted a "Page Error" and wouldn't open it. I then tried the DRM'd version and got the same "Page Error" and wouldn't open the book ... even though both ADE and Sony Reader on the PC opened it. Why am I reporting this here in the Calibre forum? Well, since Calibre was the only software to report the nature of the problem I thought maybe I could get some help here.