Quote:
Originally Posted by alexter
Not what is happening here. If the book is not pre converted to mobi it sends the metadata after each book convert and upload, just take a look at the screenshot I've posted earlier. After I convert the books as a batch it sends all the books at once and then it sends the metadata.
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If you do on-the-fly conversion, does Calibre keep the converted books in its library or are they gone as soon as they're sent to the device?
If the converted copies don't ever get stored in the Calibre library, that would explain why it does a send immediately after conversion. Imagine Calibre crashing at book 1999 of a 2000 book transfer and needing to start all over again.
One trick I use to speed up sending thousands of books to a device (assuming embedded book metadata does not need to be updated):
- Use "Save to disk" with "Update metadata in saved copies" unchecked to save books to a folder on SSD.
- Exit Calibre.
- Copy the save to disk folder to Kindle using FastCopy, TeraCopy, Robocopy, etc.
- (optional) Start Calibre again to update device metadata cache (metadata.calibre and covers?).
This shaves off around 40% from the transfer time for me (practically pure text, fairly small file sizes so relatively large overhead). I also find it useful being able to skip the metadata cache update when I'm in a hurry.