compression ratio Citroen C CROSSER 2012 1.G Owner's Manual

XI
AUDIO and TELEMATICS
General notes on MP3/WMA CDs

Playing an MP3/WMA CD
When the MP3/WMA CD is
inserted in the player, play-
ing of the tracks is automatic.
The tracks cannot be recorded
onto the music server.
You can play CDs with up to 8 levels,
255 folders and 400 fi les maximum.

Copyright
Your Audio equipment may allow you
to listen to music which is usually pro-
tected by copyright in accordance with
current national and international stan-
dards. Please consult these standards
and comply with them.

Acceptance of the fi les
Some blank CDs may not be played
by your equipment (quality, recording
speed...).
When you burn a CD-R or CD-RW,
select the ISO 9660 level 1.2 or Joliet
burning standard.
To obtain the best acoustic quality pos-
sible, select the lowest burning speed.
The MPEG1 and MPEG2 standards
are accepted.
Transmission speeds between 32 and
320 kbits/s and scans between 16 kHz
and 48 kHz are accepted.
To display the title information (the
name of the artist, the title of the
album, etc...), the information con-
tained in the ID3 Tags or the WMA Tags
must be included in the MP3/WMA fi les
burned onto the disc.
What is the MP3/WMA fi le format?
MP3 is the abbreviation of MPEG-1
Audio Layer 3 and MPG is the abbrevia-
tion of Motion Pictures Experts Group, a
digital video data compression standard
used on media such as video CDs.
The MP3 compression reduces the
number of bytes in a song by eliminating
the long sound waves in the range of fre-
quencies which are imperceptible to the
human ear, so producing high quality au-
dio fi les with a low volume of data.
This compression divides the size of
the content of a conventional audio CD
by approximately 10, which means that
the content of 10 audio CDs can be
recorded onto a single CD-R or CD-RW.
WMA is the abbreviation of Windows
Media Audio, another audio data com-
pression standard offered by Microsoft.
It can be used to create and save audio
fi les at a compression rate higher than
that of the MP3 format.
Windows Media and Microsoft Corpo-
ration are trademarks registered in the
United States and/or other countries.