How might I go about exploiting Z39.50 to extract specific MARC records from a library catalog? More precisely, I am trying to download sets of MARC records from remote library catalogs destined for a sort of union catalog. I see each of these records being identified with a specific string in a local note or local subject field. This string might be "CRRA", and my question is three-fold: 1. What MARC field/subfield might I put this string? 2. How would I go about getting the string indexed? 3. How might I go about querying the server for records with this string? For example, I might put CRRA in 599 $a. I would cross my fingers hoping this field gets indexes, and I might be able to search for it like this [1]: @attr 1=63 2=3 3=3 4=2 5=100 6=1 CRRA Am I on the right track? [1] http://www.collectionscanada.gc.ca/bath/tp-bath2.23-e.htm#b -- Eric Morgan