On Tue, 6 Aug 2013 10:23:33 +0200, Jens Østergaard Petersen 
<[log in to unmask]> wrote:
>It is still an open question whether an element is repeatable if it is 
not said to be repeatable in the online documentation.
The MODS schema does note that this element is repeatable.  
See "Guidelines for use" on following page
http://www.loc.gov/standards/mods/userguide/abstract.html
>
>For example, <subTitle> is said to be repeatable on 
<http://library.princeton.edu/departments/tsd/metadoc/mods/titleinfo.html>,
 but nothing is said about this in the online documentation. The same for 
<partNumber> and <partName>.
I take this to mean that the elements can be repeated within a single MODS 
record within repeated <titleInfo> element, but I could be wrong?!
>
>I prefer these to be repeatable (whereas <nonSort> and <title> obviously 
should not be repeatable).
But if your record contained a translated title then you would wish to 
repeat these fields.  Here is an example from one of our MODS records 
where the main title is in English but there is also a Welsh translation 
of the title...
<mods:titleInfo>
<mods:title>[Blaenau Ffestiniog Grammar School]</mods:title>
</mods:titleInfo>
<mods:titleInfo type="translated" lang="wel">
<mods:title>Ysgol Ramadeg Blaenau Ffestiniog</mods:title>
</mods:titleInfo>

There's also a note regarding this in the Guidelines for use on the 
followig page..
http://www.loc.gov/standards/mods/userguide/titleinfo.html

Regards,
Vicky
Digital Standards Manager
National Library of Wales