The most thorough audience appraisal carried out by the Library of Congress consisted of an end-user evaluation conducted in 1992–1993. Forty-four school, college and university, and state and public libraries were provided with a dozen American Memory collections on CD-ROMs and videodisks (these formats are no longer being supported). Participating library staff, teachers, students and the public were polled about which digitized materials they had used and how well the delivery systems worked. The evaluation indicated continued interest by institutions of higher education as well as public libraries. The surprising finding, however, was the strong showing of enthusiasm in schools, especially at the secondary level. Library Science students however should be more wary of such a development given the potential for unwarranted changes being made to the collection.