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EdTech 101.5
CDs AND DIGITAL AUDIO
1983 – The compact disc and the compact disc player were marketed by both Philips and Sony corporations. Stereo LPs will eventually lose out to this new, convenient format that provided good sound on relatively inexpensive playback systems.

DIGITAL ERA
DIGITAL ENCODING
1996 – A U.S. patent was issued for the MP3, a compressed, low bit-rate audio format that has become the most commonly used audio medium.
DIGITAL MINIATURES
1999 – iTunes was developed and introduced by Apple Inc. in 2000. Both a media player and library, iTunes allows users to purchase downloads of music, organize, and store the files in numerous ways. In October 2001 Apple introduced the iPod, a portable player designed to store recorded selections downloaded from the “iTunes Digital Jukebox,” which appeared in January of that year.

Library of Congress: Recorded Sound Section. (n.d.) A Recorded Sound Timeline. Retrieved from http://www.loc.gov/today/pr/2013/files/recorded_sound_timeline.pdf
Morton, D. (1998). The history of recording technology. Retrieved from http://www.recording-history.org/HTML/musictech1.php