[log in to unmask]" type="cite">Karen, at the ISBN Agency we've discovered that this is not consistent. Amazon doesn't supply an ISBN - the publisher does. And many publishers don't bother assigning an ISBN to their mobi files, because it's not a requirement at Amazon. BN/Nook assigns a proprietary EAN if no ISBN is provided by the publisher. Best practice dictates that different formats receive unique ISBNs, but many publishers don't adhere to that.
The number soars, but not consistently.
From: Karen Coyle <[log in to unmask]>
Reply-To: <[log in to unmask]>
Date: Monday, May 20, 2013 10:40 AM
To: <[log in to unmask]>
Subject: Re: [BIBFRAME] Instance of ISBNs in MARC records
Another interesting piece of data:
For eBooks, if they are distributed by different vendors (Amazon v. iTunes, etc.), each VENDOR provides a different ISBN. So the exact same thing gets more than one ISBN. Also, every different eBook format from the same vendor is supposed to have a different ISBN: PDF, ePub, Mobi, etc. So as we go more digital, the number of ISBNs expands soars!
kc
On 5/20/13 7:05 AM, David Weinberger wrote:
[log in to unmask]" type="cite">Is this information from Mac Elrod and Shlomo Sanders the frequency of ISBNs publicly bloggable? It's very interesting.
- David Weinberger
On Mon, May 20, 2013 at 9:19 AM, Shlomo Sanders <[log in to unmask]> wrote:
From a large sample of data that we get from publishers:
- Only 24.5% with one ISBN!
- 40% with multiple ISBNs!
- Largest group has no ISBN!
ISBN Count Percentage of records with X ISBNs 0 38.57% 1 24.49% 2 17.00% 3 5.88% 4 10.77% 5 2.14% 6 0.65% 7 0.09% 8 0.12% 9 0.24% 10 0.04% Thanks,ShlomoExperience the all-new, singing and dancing interactive Primo brochure-----Original Message-----
From: Bibliographic Framework Transition Initiative Forum [mailto:[log in to unmask]] On Behalf Of J. McRee Elrod
Sent: Sunday, May 19, 2013 20:34
To: [log in to unmask]
Subject: Re: [BIBFRAME] Instance of ISBNs in MARC recordsIn SLC's database of over 300,000 records, over 169,000 have no ISBN, over 114,000 have one, over 19,000 have two, and the number of ISBNs ranges up to 36 in one record.For us, Instances can't be based on ISBNs.Total Records: 315389020s Records00 16902101 11422102 1974503 740304 323805 114906 34407 11808 2909 4210 1111 1612 1013 1214 415 516 317 718 119 121 122 123 125 327 128 136 1__ __ J. McRee (Mac) Elrod ([log in to unmask]){__ | / Special Libraries Cataloguing HTTP://www.slc.bc.ca/___} |__ \__________________________________________________________
-- Karen Coyle [log in to unmask] http://kcoyle.net ph: 1-510-540-7596 m: 1-510-435-8234 skype: kcoylenet
-- Karen Coyle [log in to unmask] http://kcoyle.net ph: 1-510-540-7596 m: 1-510-435-8234 skype: kcoylenet