Re: [ol-discuss] ISBN with X

2013-11-13 Thread Anand Chitipothu
On 12-Nov-2013, at 11:00 PM, Tom Morris wrote: On Tue, Nov 12, 2013 at 12:22 PM, xan x...@0l3.de wrote: What is ISBN-13 for? Until now, I always thought it extended the number of possible registered books but it can’t if all of it’s extra digits are fixed. The 979 prefix was also added,

Re: [ol-discuss] ISBN with X

2013-11-12 Thread Luciano Ramalho
On Tue, Nov 12, 2013 at 7:27 AM, xan x...@0l3.de wrote: Hi OL! I’ve come across a book which has the ISBN printed on it’s back cover. It says: ISBN 3-518-06868-7900 Without '900' it’s an ISBN-10 I suppose and that’s how I catalogued it. My guess is that '3-518-06868-7-900' would be the

Re: [ol-discuss] ISBN with X

2013-11-12 Thread xan
Thanks for you advice, Luciano and Karen. I’ll just ignore the '900' then. If I understand you correctly, you can calculate the ISBN-13 easily for every ISBN-10. Which brings me to two question: (- What is ISBN-13 for? Until now, I always thought it extended the number of possible registered

Re: [ol-discuss] ISBN with X

2013-11-12 Thread Tom Morris
On Tue, Nov 12, 2013 at 12:22 PM, xan x...@0l3.de wrote: What is ISBN-13 for? Until now, I always thought it extended the number of possible registered books but it can’t if all of it’s extra digits are fixed. The 979 prefix was also added, doubling the size of the available space. The