ISBNDM Not Working

[dFGJByjm4898IssG]

I setup an account and loaded the access key into Calibre. Entered several isbn numbers, all valid, and then hit the download metadata buttom - book not found.

calibre, version 0.8.57
ERROR: No matches found: <p>Failed to find any books that match your search. Try making the search <b>less specific</b>. For example, use only the author's last name and a single distinctive word from the title.<p>To see the full log, click Show Details.

Running identify query with parameters:
{u'authors': None, u'identifiers': {u'isbn': u'0070016003'}, u'timeout': 30, u'title': None}
Using plugins: Google, Amazon.com, ISBNDB
The log from individual plugins is below

****************************** ISBNDB ******************************
Request extra headers: [('User-agent', 'Mozilla/5.0 (Windows NT 6.2; rv:9.0.1) Gecko/20100101 Firefox/9.0.1')]
Found 0 results
Downloading from ISBNDB took 0.888000011444

************************************************** ******************************

****************************** Amazon.com ******************************
Request extra headers: [('User-agent', 'Mozilla/5.0 (Windows NT 6.2; rv:9.0.1) Gecko/20100101 Firefox/9.0.1')]
Found 0 results
Downloading from Amazon.com took 1.875
No matches found with query: u'http://www.amazon.com/s/?sort=relevanceexprank&search-alias=aps&field-isbn=0070016003&unfiltered=1'

************************************************** ******************************

****************************** Google ******************************
Request extra headers: [('User-agent', 'Mozilla/5.0 (Windows NT 5.2; rv:2.0.1) Gecko/20100101 Firefox/4.0.1')]
Found 0 results
Downloading from Google took 0.510999917984

************************************************** ******************************
The identify phase took 2.02 seconds
The longest time (1.875000) was taken by: Amazon.com
Merging results from different sources and finding earliest publication dates from the xisbn service
We have 0 merged results, merging took: 0.00 seconds


Two thing are strange, if I logon to https://isbndb.com/account/dev/keys/
I see the usage counter has increased and if I do a manual search at the site it finds the book.

Petroleum reservoir engineering
[by] James W. Amyx, Daniel M. Bass, Jr. [and] Robert L. Whiting
Publisher: New York, McGraw-Hill, 1960-
ISBN: 0070016003 DDC: 622.3382 LCC: TN870
Notes:
Includes bibliography.

[1] Physical properties.
Classification:
(click to see other 'Books on the Same Shelf')
Dewey Class: 622.3382 -- Mining & related operations
LCC Number: TN870

So what I am doing wrong. By the way the Title and Author fields contain "Unknown" as I have been loading several books at a time.

[kovidgoyal]

The isbndb plugin only returns results if the results have a description. I'll change that in the next calibre release for use cases like yours: no author/title and only an isbn, where it makes sense to return the result.

[dFGJByjm4898IssG]

Thanks Kovid, and many thanks for writing such a powerful and flexible piece of software.

I am using Calibre to store over 5000 technical papers in PDF format, together with technical reports as well as conventional "hard" and "software" books. I did try out JabRef but Calibre's library to store all the files in a consistent manner won the day.

Again, thank you.