Bill Lefugy raises a good point about PDF/A and XMP's use of RDF for metadata... not having read the XMP specs in any detail, does anyone know what sort of metadata XMP will really include? Descriptive I know, and rights, but also technical? I'm wondering if XMP metadata would always fit nicely in our dmdSec metadata bucket, or it if would actually span several of the METS metadata categories. MacKenzie MacKenzie Smith Associate Director for Technology MIT Libraries Building 14S-308 77 Massachusetts Avenue Cambridge, MA 02139 (617)253-8184 [log in to unmask]