Quote:
Originally Posted by iossif
I made a copy of my library on a microSD card in order to read them on my android tablet.
There I discovered that all the old covers, and the old, messy tags where still there. Even though my Calibre library shows them all neat and nice.
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PeterT is correct the metadata in the files in calibre's library are not updated. Instead calibre updates the metadata on the fly whenever a book is exported from calibre using methods Provided by calibre such as the Send to Device or Save to Disk features. If you want to bypass calibre's method of getting books to your device then you will have to use calibre's polish feature to embed the metadata and covers in the books that in the calibre folder structure.
Calibre's manual describes this feature as follows:
Quote:
Polishing books is all about putting the shine of perfection onto your carefully crafted ebooks.
Polishing tries to minimize the changes to the internal code of your ebook. Unlike conversion, it does not flatten CSS, rename files, change font sizes, adjust margins, etc. Every action performs only the minimum set of changes needed for the desired effect.
You should use this tool as the last step in your ebook creation process.
Note that polishing only works on files in the AZW3 or EPUB formats.
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Here is
an article on the polish feature.