86 Chapter 3 it on the fly from the HTML representation. This serves to underscore the fact that digital libraries can change the entire look and feel of all documents in a collection at the touch of a button--or, as in this case, a single menu selection on a Preferences page. 3.2 Presenting Multimedia Documents Next we consider multimedia documents: audio recordings and photographic images; video, which includes both image and audio components; and musical objects that can be presented in several dif- ferent forms. Sound and pictures Some years ago, the public library in Hamilton, New Zealand, the small town where we live, began a project to collect local history. Concerned that knowledge of what it was like to grow up in Hamilton in the 1930s, 1940s, and 1950s would soon be permanently lost, the library decided to arrange to interview older people about their early lives. Armed with tape recorders, local volunteers conducted semistructured interviews with residents of the region and accumulated many cassette tapes of recorded reminiscences, accompanied by miscellaneous photographs from the interviewees' family albums. From these tapes, the interviewers developed a brief typewritten summary of each interview,