We have several questions related to the usage of MARC encodings. We hope that your answers may help us decide whether or not it is valuable to add them in the finding aids. Who is actually using the attribute value "USMARC" in <EAD RELATEDENCODING="USMARC">? We would like to know approx. what percentage of users are actually filling in the MARC codes in the attribute ENCODINGANALOG that is included within the EAD elements. Also: do you use as many codes as possible, or do you use a limited number of them? What is the added value of using the attribute ENCODINGANALOG? Will it be worth all the extra tagging? Thank you very much for your help, Els van Trigt, Alfa Base publikatie processors.