16 mm roll film is used to record 8.5×11 and 11×14 documents. Documents that have signatures such as employment records, contracts, hospital records, mortgages, liens, county records, criminal records, have been committed to film due to archival or government requirements. 16 mm roll film contain around 2000 to 5000 images, and they can be simplex (one document per frame) or duplex (two documents per frame).
It makes sense to digitize microfilm via microfilm scanning. In a digital format, agencies, organizations, or companies can retrieve data much more efficiently.