How do existing practices for digital preservation apply to digital 3D data? What are current digital curation practices and how do they translate to 3D data? What guidance exists or is being developed to provide steps for forward migration and format longevity of 3D data? What is raw 3D data and how do we record digital provenance? How can we work around proprietary file formats?
http://www.dpconline.org/handbook/technical-solutions-and-tools/file-formats-and-standards