I don't think anyone has mentioned the GMD "manuscript" in this particular thread.  I don't know how many libraries used "manuscript" as a GMD; LC did not, which may have discouraged its use. "Manuscript" has no equivalent value in the 336-338 trio; it is treated as a method of production, which in effect buries it in the physical description area.
 
Using an icon or text string based on  leader type is one option, though this won't help with searching. Another option would be to record the fact in the 245$k. This is what APPM (Archives, Personal Papers, and Manuscripts) recommended; it is also what is recommended in the current draft of Descriptive Cataloging of Rare Materials (Manuscripts). 
 
 
Elizabeth O'Keefe
Director of Collection Information Systems
The Morgan Library & Museum
225 Madison Avenue
New York, NY  10016-3405
 
TEL: 212 590-0380
FAX: 212-768-5680
NET: eoke...@themorgan.org
 
Visit CORSAIR, the Library’s comprehensive collections catalog, now on
the web at
http://corsair.themorgan.org
 
>>> "Brenndorfer, Thomas" <tbrenndor...@library.guelph.on.ca> 9/20/2011 9:25 AM >>>
Of course, there's a more direct mapping from 337 to the GMD for some of these particular cases:

337 audio -- GMD sound recording
337 computer -- GMD electronic resource
337 microform -- GMD microform
337 video -- GMD videorecording

The projected media are problematic in that some are influenced by the Content Type and mapped to the GMD "motion picture" and some 338 projected media carriers are mapped directly to non-general GMDs such as filmstrip or transparency. This why the GMD is a misleading concept as it wobbles incoherently from content terms to general terms related to intermediation devices to very specific carrier terms.

The unmediated media such as cards, sheets, and volumes ignore the main problem-- these can be mapped to a large number of possible GMDs, such as cartographic material for atlases, still images of many kinds (photographs, postcards), and music for notated music.

The GMDs for [text], [cartographic material] and [music] map to the Content Type in 336. Any of these are superseded by GMDs for electronic resources or microform if the underlying carrier changes, which again points to the inconsistent and flawed logic of the GMDs.

Thomas Brenndorfer
Guelph Public Library




> -----Original Message-----
> From: Resource Description and Access / Resource Description and Access
> [mailto:RDA-L@LISTSERV.LAC-BAC.GC.CA] On Behalf Of Karen Coyle
> Sent: September 20, 2011 12:20 AM
> To: RDA-L@LISTSERV.LAC-BAC.GC.CA
> Subject: Re: [RDA-L] RDA media terms and AACR2 GMDs
>
> Quoting "J. McRee Elrod" <m...@slc.bc.ca>:
>
> > Was it Karen who asked about RDA media terms relation to AACR2 GMDs?
>
> Yes, I did ask, and thanks. Given that there are GMDs that are not
> listed here, could they be derived from 336-337 or a combination? Or
> are some simply not covered by the RDA terms?
>
> kc
>
> >
> > These are the GMDs we will be offering to insert in RDA records,
> based
> > on 338 carrier, for clients who can not change from 336-338 display
> > between collation and series.
> >
> >
> > If exporting AACR2 GMDs in RDA records:
> >
> > If 338 is:                              Export as 245$hpsmd]:
> >
> >
> > audio cartridge                         sound recording
> >
> > audio cylinder                          sound recording
> >
> > audio disc                              sound recording
> >
> > sound-track reel                        sound recording
> >
> > audio roll                              sound recording
> >
> > audiocassette                           sound recording
> >
> > audiotape reel                          sound recording
> >
> >
> > computer card                           electronic resource
> >
> > computer chip cartridge                 electronic resource
> >
> > computer disc                           electronic resource
> >
> > computer disc cartridge                 electronic resource
> >
> > computer tape cartridge                 electronic resource
> >
> > computer tape cassette                  electronic resource
> >
> > computer tape reel                      electronic resource
> >
> > online resource                         electronic resource
> >
> > ressource en ligne                      electronic resource
> >
> > aperture card                           microform
> >
> > microfiche                              microform
> >
> > microfiche cassette                     microform
> >
> > microfilm cartridge                     microform
> >
> > microfilm cassette                      microform
> >
> > microfilm reel                          microform
> >
> > microfilm roll                          microform
> >
> > microfilm slip                          microform
> >
> > microopaque                             microform
> >
> > film cartridge                          motion picture
> >
> > film cassette                           motion picture
> >
> > film reel                               motion picture
> >
> > film roll                               motion picture
> >
> > filmstrip                               filmstrip
> >
> > filmstrip cartridge                     filmstrip
> >
> > overhead transparency                   transparency
> >
> > slide                                   slide
> >
> > card                                    no GMD
> >
> > [equipment]                             equipment
> >
> > flipchart                               chart
> >
> > [kit]                                   kit
> >
> > object                                  realia
> >
> > roll                                    no GMD
> >
> > sheet                                   no GMD
> >
> > volume                                  no GMD
> >
> >
> > video cartridge                         videorecording
> >
> > videocassette                           videorecording
> >
> > videodisc                               videorecording
> >
> > videotape reel                          videorecording
> >
> >
> >
> >
> > A few scarier terms we do not expect to encounter are not included.
> > One French term has been added, which we would be using for Quebec
> > clients.   These are the 336-338 French media terms we would be using
> > for e-books; the $2 codes are just "placeholders";  LAC has not yet
> > determined what the codes will be.
> >
> >
> > 336  $atexte$2frecontent
> >
> > 3377  $a{acute}electronique$2fremedia
> >
> > 338  $aressource en ligne$2frearrier
> >
> >
> >    __       __   J. McRee (Mac) Elrod (m...@slc.bc.ca)
> >   {__  |   /     Special Libraries Cataloguing
> HTTP://www.slc.bc.ca/
> >   ___} |__
> \__________________________________________________________
> >
>
>
>
> --
> Karen Coyle
> kco...@kcoyle.net http://kcoyle.net
> ph: 1-510-540-7596
> m: 1-510-435-8234
> skype: kcoylenet

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