Karen quoted:

>DVDs    DVDs may not get an ISBN if they are entertainment or performance 
>videos.
 
It may be contrary to the ISBN rules, but we often see feature film
DVDs with ISBNs labeled "ISBN:".  They are usually above the bar code,
with the bar code number beneath the bar code itself.  All three are
usually on a white label, often in the upper right hand corner of the
container back.
  
Using Z39.50 ISBN search, we can usually find a record, so they are
entered in 020.

In mentioning standard numbers which refer to the resource rather than
the description, I forgot to mention the DOI along with the ISBN and
ISSN.

Reality often differs from what is "supposed" to be the case, witness
one ISBN per instance which Bibframe designers expected.  I have seen
less misuse of DOIs.


   __       __   J. McRee (Mac) Elrod ([log in to unmask])
  {__  |   /     Special Libraries Cataloguing   HTTP://www.slc.bc.ca/
  ___} |__ \__________________________________________________________