These are in 856 fields, and I doubt there was any automated process
to add them, which means catalogers manually added them.
Roy

On Wed, Apr 27, 2011 at 9:27 AM, Jonathan Rochkind <[log in to unmask]> wrote:
> Any idea how those got there, Roy? Manually added by Catalogers? (To what
> MARC field, just an 856?).  Added by OCLC processing somehow?
>
> On 4/27/2011 12:14 PM, Roy Tennant wrote:
>>
>> For what it's worth, I see over 7,000 links to IMDB from WorldCat records.
>> Roy
>>
>> On Wed, Apr 27, 2011 at 9:01 AM, marijane white
>> <[log in to unmask]>  wrote:
>>>
>>> To confirm some of what Jonathan said...
>>>
>>> As the maintainer of a collection nearing 20,000 DVDs, I can confirm that
>>> DVDs rarely have ISBNs.  When they do, it's usually educational,
>>> instructional, or musical content.  I don't think I've seen a feature
>>> film
>>> DVD with an ISBN.
>>>
>>> IMDB does have UPC data for some DVDs.  IIRC, searching for a UPC on IMDB
>>> takes you to a page listing the DVDs for a particular movie, rather than
>>> the
>>> main title page.
>>>
>>> The only DVDs I've seen that did not have a UPC were pre-release
>>> screeners,
>>> which I would be surprised to find in most library collections.
>>>
>>>
>>> On Wed, Apr 27, 2011 at 8:26 AM, Jonathan Rochkind<[log in to unmask]>
>>>  wrote:
>>>
>>>> But you're just going to have to title search on freebase, right? (Same
>>>> functionality may be avail on IMBD directly without going through
>>>> freebase,
>>>> but more importantly...)
>>>>
>>>> There are frequently movies sharing the same title with an entirely
>>>> different movie. Maybe title/year search instead?
>>>>
>>>> But movies wind up with several 'publication dates' (date of release in
>>>> theaters, date of release for a DVD or videotape, different dates of
>>>> release
>>>> for different manifestations. Who knows what date you've got in your
>>>> 'source' record you're trying to link to, and if that's going to match
>>>> the
>>>> date(s) in the freebase record.
>>>>
>>>> I'm not sure of a great way to do this. Metadata matching is a bitch.
>>>>
>>>> A FEW of our library bibliographic records actually have a UPC/EAN in
>>>> them
>>>> for videos. (ISBN is actually a subset of UPC/EAN, at least since
>>>> ISBN-13.
>>>> But I think DVDs and videocassettes sold aren't going to have an ISBN
>>>> usually, but usually will have a UPC/EAN).
>>>>
>>>> If you've got one of those, you might be able to search on that in
>>>> freebase? (even if you can't in IMBD directly? here's where freebase
>>>> might
>>>> rule).  Relies on freebase having that UPC/EAN in it's database, for the
>>>> particular manifestation you've got a record for.   Not sure the
>>>> prospects
>>>> of that. And few (but some) of our records have UPC/EAN anyway.
>>>>
>>>> In general here though, this is another reminder that in the present
>>>> environment, unambiguous identifiers RULE.  Like ISBN, UPC/EAN, etc.
>>>>  One of
>>>> the most valuable things catalogers can add to records. I really wish it
>>>> would become common practice to add a UPC/EAN to all dvd/video records
>>>> where
>>>> the item-in-hand has one on it. Even if that means sacrificing some
>>>> other
>>>> things, I know cataloger time is a precious resource. But UPC/EAN should
>>>> be
>>>> considered very very high value, it could enable all sorts of
>>>> value-added
>>>> services and linking to external databases.
>>>>
>>>> Jonathan
>>>>
>>>>
>>>> On 4/27/2011 11:09 AM, Sean Hannan wrote:
>>>>
>>>>> If I were doing this, I'd use the Freebase (freebase.com) API and write
>>>>> a
>>>>> little app that returns the IMDB title stem (ex: tt0460791) for each of
>>>>> the
>>>>> films you're trying to match up.
>>>>>
>>>>> -Sean
>>>>>
>>>>>
>>>>> On 4/27/11 10:56 AM, "R. Levi"<[log in to unmask]>    wrote:
>>>>>
>>>>>  I would like to add a link to IMDB for the feature  films that we have
>>>>> in
>>>>>>
>>>>>> our
>>>>>> catalog.  IMDB doesn't appear to have  ISBNs.  Is there a way to link
>>>>>> the
>>>>>> MARC
>>>>>> record with the IMDB record  without manually searching IMDB to find
>>>>>> each
>>>>>> movie?  Thanks, Rich
>>>>>>
>