About Mp3/Wma/Aac - Alfa Romeo 4C Spider 2015 Owner's Supplement

42 CD/MP3/WMA/AAC

About MP3/WMA/AAC

CAUTION!
Except for private use, duplicating audio data
(including MP3/ WMA/AAC data) or distributing,
transferring, or copying it, whether for free or for
a fee, without permission of the copyright holder
is strictly prohibited by the Copyright Act and by
international treaty.
What is MP3?
MP3, whose official name is "MPEG Audio Layer 3," is
a compression standard prescribed by the ISO, the
International Standardization Organization and MPEG
which is a joint activity institution of the IEC. MP3 files
contain compressed audio data. MP3 encoding is ca-
pable of compressing audio data at extremely high
ratios, reducing the size of music files to as much as
one-tenth their original size. This is achieved while still
maintaining near CD quality. The MP3 format realizes
such high compression ratios by eliminating the
sounds that are either inaudible to the human ear or
masked by other sounds.
What is WMA?
WMA, or "Windows Media™ Audio," is compressed
audio data. WMA is similar to MP3 audio data.
What is AAC?
AAC is the abbreviation for "Advanced Audio Cod-
ing", and is a basic format of audio compression used
by MPEG2 or MPEG4.
Method for creating MP3/WMA/AAC files
Audio data is compressed using software with MP3/
WMA/AAC codecs. For details on creating MP3/
WMA/AAC files, refer to the user's manual for that
software.