books.google.ca - MP3, standing for MPEG-1, Layer 3, is a codec for compressing the size of audio files for digital distribution. Much more than a definition, MP3 is nothing less than a cultural and economic revolution on the Internet. Every day, hundreds of thousands of MP3 music files are searched for, shared, recorded...https://books.google.ca/books/about/MP3.html?id=fjj0AAAAMAAJ&utm_source=gb-gplus-shareMP3