Greta said: >For example the prescribed >vocabulary for 3.19.3.3 for encoding >format is quite inadequate to the >real-world situation of many newer >format types and complicated digital >objects like games. Would that not always be true of any prescribed list? In RDA/MARC21 we can use any popular exact term as unit name, rather than repeating a more general term from the RDA carrier list. I assume Bibframe would have a unit name (aka SMD) tag which would accept any desired terms. For example, the MRIs add "kit" to the RDA carrier list, a term we often use in collation, and the term we most miss from AACR2's GMD terms. There will always be a need for terms not in a prescribed list, as well as lacking a code to substitute for the term. __ __ J. McRee (Mac) Elrod ([log in to unmask]) {__ | / Special Libraries Cataloguing HTTP://www.slc.bc.ca/ ___} |__ \__________________________________________________________