The initial backfile completed filming in 1993. A regular updating process was put into place sending current superseded volumes forward within six to eight months of becoming superseded. The decision was made to include additional backfiles in the collection on a regular basis based on the Pimsleur Checklist, when they are located from our contributing libraries. All efforts are made to assure that additional backfiles do not exceed the anticipated annual upkeep cost. For more information on the backfile, please inquire.
Special discounts are also available on regional packages and complete collection purchases.
Invoicing may be spread over several budget years to assist your library in its conversion process. The Superseded Code Project is available on standard 24X reduction diazo microfiche with a negative polarity body. Each fiche is individually enveloped for extra protection. All film is of the highest quality and meets recognized standards.