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December 2012

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Subject:
From:
James Staub <[log in to unmask]>
Reply To:
MarcEdit support in technical and instructional matters <[log in to unmask]>
Date:
Wed, 19 Dec 2012 08:26:23 -0500
Content-Type:
text/plain
Parts/Attachments:
text/plain (36 lines)
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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