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Date: | Wed, 19 Dec 2012 08:26:23 -0500 |
Content-Type: | text/plain |
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At Nashville Public Library, we currently use a MARCEditor Task to
normalize 856 fields of OverDrive records, and the Edit Subfield regexp
looks like this:
Field: 856
Subfield: u
Field data: ^.*([0-9A-Z]{8}-[0-9A-Z]{4}-[0-9A-Z]{4}-[0-9A-Z]{4}-[0-
9A-Z]{12}).*?$
Replace with: uhttp://emedia.library.nashville.org/ContentDetails.htm?
ID=$1
Search Options: Use regular expression [checked]
The OverDrive ContentID (that's what the OverDrive folks call the 32-
digit hex number (that has 4 hyphens too for a total 36 characters))
should not be confused with the session ID hex number (also 32 digits
+ 4 hyphens), which occasionally appears in WorldCat records for
OverDrive titles. If there are two 32-digit hex numbers in a given 856,
the regexp above chooses the latter (with a greedy .* in the front and
an ungreedy .*? on the tail).
The OverDrive contentID is also very useful in searching - it provides a
very precise search term!
If you're using Connexion, try
am:27770BA9-9E68-410C-902B-DE2DE8E2B7FE
If you're using MARCEdit z39.50 against zcat.oclc.org, search Raw
(Adv.):
@attr 1=1209 27770BA9-9E68-410C-902B-DE2DE8E2B7FE
More later,
James Staub
Nashville Public Library
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