Losing Metadata Summary info. Conflict between two sources?

JohnnyBook · 10-20-2022, 01:32 AM

Recently I was downloading metadata for a bunch of books that did not have data.

Sometimes, books I thought should include Summaries, were shown as "no summary available" on the choose metadata screen.

I noticed a pattern:
IF the source was only Amazon, Summary was included.

IF the source was GoodReads & Amazon No summary was included.

Checking it looked like GoodReads did NOT have a summary, and although Amazon did, the Amazon summary was blocked.

If both had a summary, Goodreads was preferred. (Amazon usually had slightly better formatting)

Removing Goodreads as a source, sometimes allowed Summaries to come through, but frequently returned no matching books found. (could no longer find the book on Amazon.)

EDIT: In further testing if it finds multiple sources for the same book, the first source is what is used. (ie if a book matches on Fantastic Fiction, GoodReads, and Amazon.) It will use Fantastic Fiction's summary.

Removing Fantastic fiction as a source it will return GoodReads and Amazon with No Summary.

Searching with Only Amazon frequently No matches were found. But if it did, it included a summary.

Here is an example.

"Wake Him Up" by Michael Anderle (Series "One U.G.L.Y. Marine" book 1)

Using Metadata source:
FF, GR, and Amazon All three match and returns FFs summary.
GR and Amazon both match and returns no summary (GR has no summary)
Amazon wrong book found.

Why is it not finding the book in Amazon Only searches?
Can I change the order of the meta searches sources?
Can it Not block summary info of later sources if the first one has none?

kovidgoyal · 10-20-2022, 01:40 AM

There's no conflict. calibre cannot use parts of metadata from one result to fill in the blanks in another result unless it can be sure they are for the same thing, which requires isbn matching. SO wehther comments from result b anre used in result a depends on whether result a and b have matching isbns.

And if you want more insight into the process click the view log button.

JohnnyBook · 10-20-2022, 02:43 AM

I assumed it was the same ISBN, because they are in the same result entry in the download metadata result listing.

10-20-2022, 01:32 AM	#1
JohnnyBook Groupie Posts: 196 Karma: 126824 Join Date: Dec 2008 Location: Out There Device: K3 W/3G (Fixed screen!) & Paperwhite Wifi	Losing Metadata Summary info. Conflict between two sources? Recently I was downloading metadata for a bunch of books that did not have data. Sometimes, books I thought should include Summaries, were shown as "no summary available" on the choose metadata screen. I noticed a pattern: IF the source was only Amazon, Summary was included. IF the source was GoodReads & Amazon No summary was included. Checking it looked like GoodReads did NOT have a summary, and although Amazon did, the Amazon summary was blocked. If both had a summary, Goodreads was preferred. (Amazon usually had slightly better formatting) Removing Goodreads as a source, sometimes allowed Summaries to come through, but frequently returned no matching books found. (could no longer find the book on Amazon.) EDIT: In further testing if it finds multiple sources for the same book, the first source is what is used. (ie if a book matches on Fantastic Fiction, GoodReads, and Amazon.) It will use Fantastic Fiction's summary. Removing Fantastic fiction as a source it will return GoodReads and Amazon with No Summary. Searching with Only Amazon frequently No matches were found. But if it did, it included a summary. Here is an example. "Wake Him Up" by Michael Anderle (Series "One U.G.L.Y. Marine" book 1) Using Metadata source: FF, GR, and Amazon All three match and returns FFs summary. GR and Amazon both match and returns no summary (GR has no summary) Amazon wrong book found. Why is it not finding the book in Amazon Only searches? Can I change the order of the meta searches sources? Can it Not block summary info of later sources if the first one has none? Last edited by JohnnyBook; 10-20-2022 at 01:35 AM.

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10-20-2022, 01:40 AM	#2
kovidgoyal creator of calibre Posts: 45,345 Karma: 27182818 Join Date: Oct 2006 Location: Mumbai, India Device: Various	There's no conflict. calibre cannot use parts of metadata from one result to fill in the blanks in another result unless it can be sure they are for the same thing, which requires isbn matching. SO wehther comments from result b anre used in result a depends on whether result a and b have matching isbns. And if you want more insight into the process click the view log button.

10-20-2022, 02:43 AM	#3
JohnnyBook Groupie Posts: 196 Karma: 126824 Join Date: Dec 2008 Location: Out There Device: K3 W/3G (Fixed screen!) & Paperwhite Wifi	I assumed it was the same ISBN, because they are in the same result entry in the download metadata result listing.

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