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Hi Tod, I'm not understanding how UTF-8 would be considered 8-bit character data (other than the ASCII-range of the Unicode repertoire, natch). I don't think ISO 2709 knows from characters, only bytes. -- Michael # Michael Doran, Systems Librarian # University of Texas at Arlington # 817-272-5326 office # 817-688-1926 mobile # [log in to unmask] # http://rocky.uta.edu/doran/ > -----Original Message----- > From: Code for Libraries [mailto:[log in to unmask]] On Behalf Of > Tod Olson > Sent: Wednesday, April 18, 2012 5:04 AM > To: [log in to unmask] > Subject: Re: [CODE4LIB] more on MARC char encoding: Now we're about > ISO_2709 and MARC21 > > It has to mean UTF-8. ISO 2709 is very byte-oriented, from the directory > structure to the byte-offsets in the fixed fields. The values in these > places all assume 8-bit character data, it's completely baked in to the > file format. > > -Tod > > On Apr 17, 2012, at 6:55 PM, Jonathan Rochkind wrote: > > > Okay, forget XML for a moment, let's just look at marc 'binary'. > > > > First, for Anglophone-centric MARC21. > > > > The LC docs don't actually say quite what I thought about leader byte > 09, used to advertise encoding: > > > > > > a - UCS/Unicode > > Character coding in the record makes use of characters from the > Universal Coded Character Set (UCS) (ISO 10646), or Unicode(tm), an industry > subset. > > > > > > > > That doesn't say UTF-8. It says UCS or "Unicode". What does that > actually mean? Does it mean UTF-8, or does it mean UTF-16 (closer to > what used to be called "UCS" I think?). Whatever it actually means, do > people violate it in the wild? > > > > > > > > Now we get to non-Anglophone centric marc. I think all of which is > ISO_2709? A standard which of course is not open access, so I can't get > it to see what it says. > > > > But leader 09 being used for encoding -- is that Marc21 specific, or is > it true of any ISO-2709? Marc8 and "unicode" being the only valid > encodings can't be true of any ISO-2709, right? > > > > Is there a generic ISO-2709 way to deal with this, or not so much?