Future recording enhancements for increased data storage in the Advanced Photo System

Although the entire width of Advance Photo System film is coated with magnetic particles, only the edges are currently used for recording digital data. In developing increased data storage capacity using the image area of the film, new ways of modulation encoding the data, read heads with increased sensitivity, and novel ways of achieving good head-to-media compliance are required to meet the challenges of large media speed variations, low magnetic particle loading, and complying to stiff media.