Metadata duplicated in file

TheD0ct0r · 11-30-2010, 12:49 PM

I have several .mobi books that have the Metadata saved as the first page. I want to edit that data, so I import the files into Calibre telling Calibre to read the Metadata from the book. I then edit the data, and reconvert back to .mobi telling Calbre to insert the Metadata as a page in the start of the book.

The problem is, when I do this the Metadata is inserted twice. The original data that was in the file and read by Calibre, and the updated Metadata I wrote back.

Is there any way to work around this behavior, or will I get a new page of Metadata every time I want to update it?

Thank you for your time.

kovidgoyal · 11-30-2010, 03:07 PM

you will get a duplicate page each time with MOBI. If you were using epub, you woudn't. Limitations of the MOBI format mean that the page cannot be reliably "replaced", only prepended.

TheD0ct0r · 11-30-2010, 03:57 PM

That's what I was afraid of. Thanks!

atjnjk · 12-01-2010, 12:38 AM

I always keep .epub files for all books so that after changing metadata, I can convert .epub to .mobi (with option "Insert metadata as page...") without metadata duplication.

11-30-2010, 12:49 PM	#1
TheD0ct0r Enthusiast Posts: 35 Karma: 12 Join Date: Nov 2009 Device: Kindle	Metadata duplicated in file I have several .mobi books that have the Metadata saved as the first page. I want to edit that data, so I import the files into Calibre telling Calibre to read the Metadata from the book. I then edit the data, and reconvert back to .mobi telling Calbre to insert the Metadata as a page in the start of the book. The problem is, when I do this the Metadata is inserted twice. The original data that was in the file and read by Calibre, and the updated Metadata I wrote back. Is there any way to work around this behavior, or will I get a new page of Metadata every time I want to update it? Thank you for your time.

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11-30-2010, 03:07 PM	#2
kovidgoyal creator of calibre Posts: 45,611 Karma: 28549044 Join Date: Oct 2006 Location: Mumbai, India Device: Various	you will get a duplicate page each time with MOBI. If you were using epub, you woudn't. Limitations of the MOBI format mean that the page cannot be reliably "replaced", only prepended.

11-30-2010, 03:57 PM	#3
TheD0ct0r Enthusiast Posts: 35 Karma: 12 Join Date: Nov 2009 Device: Kindle	That's what I was afraid of. Thanks!

12-01-2010, 12:38 AM	#4
atjnjk Zealot Posts: 107 Karma: 554 Join Date: Oct 2008 Device: none	I always keep .epub files for all books so that after changing metadata, I can convert .epub to .mobi (with option "Insert metadata as page...") without metadata duplication.

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