Generating ISBN Bar Codes

https://www.lightningsource.com/index.htm In the resources section, they've got a cover generator where you fill in the details and it then sends you a cover template as a quark, EPS, InDesign of PDF file which includes the ISBN. You can then simply extract it. Kind of a long way round, but fairly reliable because they're a publisher's resource. Failing that, I just type in 'ISBN barcode generator' or something into Google and test all the ones that come up against real barcodes first. This was the first one that came up, and seems to do the job: http://www.camrin.org/barcode.htm How about ISSN's anyone? I'm not sure if just feeding them through an ISBN generator is the right thing to do!