Sounds, Music, and Video Clips on the Web
•Older video file formats are also available on the Web, including AVI (Audio Video Interleaved) format and QuickTime format.
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•The International Standards Organization’s Moving Picture Experts Group (MPEG) has created a series of standards for compressed file formats.
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•Recently, a number of Web sites have been created to sell digital music in MP3 and other formats.  These sites have obtained the legal right to distribute the musical works they offer for sale. 
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•Continuing developments in portable data storage technology and increasing bandwidth should ensure that digital music grows for many years.