3. The Business History of Sound Recording Technology
3a History of the Music Recording Industry
3b Recording in Corporate America
3c History of the Answering Machine Industry
4a Technologies for Recording Music
4b Answering Machine Technologies
* Webster-Chicago Wire Recorders
4e Phonograph Records through the 78 rpm disc
4f How Records Were Manufactured
5. Sound Recording and Culture
5a Cultural Impact of Recorded Music
5b Impact of Recording Technology on Music
5c Recording and the Surveillance Society
5d Recording Technology and Gender
Movie Clips:
Edison Ediphone Demonstration film