AAC is the default audio format used by Apple for ripping music from CD into iTunes.
The first, however, unsuccessful MP3 player was developed by Frauenhofer in the early 1990s.
Later, two university students, Justin Frankel and Dmitry Boldyrev ported AMP to Windows and created Winamp.
While MP3s demise is unfortunate, it is expected to die a slow and not an instant death.
source: www.techworm.net