正如加州数字图书馆技术总监彼·勃兰特莱所说 ： “ 从道德上考虑，我们有义务检查图书馆的书架，找出所有孤版作品进行扫描。 ”
As Peter Brantley, Director of Technology for the California Digital Library, has put it: “We have a moral imperative to reach out to our library shelves, grab the material that is orphaned, and set it on top of scanners.”