This didn't make the list, so I'm forwarding it...  --  Birdie

------------------------------Original message-----------------------------
From: Mitch Turitz      <TURITZ@SFSUVM.SFSU.EDU>
Subject: ISSN checkdigit?

Yes, the ISSN does have a check digit (the 8th digit) but it is not the same
as the ISBN one. The check digit is a REMAINDER after a formula (and the
remainder is X under certain circumstances, which I don't remember). It is not
really useful to know unless you are assigning ISSNs to titles. (Most online
catalogs now can check the digits for you and tell you if the ISSN is
invalid).

***************************************************************
* Mitch Turitz, Serials Librarian, San Francisco State U.     *
* Internet: TURITZ@SFSUVM.SFSU.EDU                            *
* Voice: (415) 338-7883  Fax: (415) 338-6199                  *