Mercedes-Benz 2009 SLK 300, Operator'S Manual

Page: 156 / 364

Audio system
154
Multisession CDs
For multisession CDs, the first session type
of the CD determines how the audio system
will process the CD.
For example, if the first session type is
according to the audio CD standard and the
second session type is according to the data
CD standard containing MP3/WMA tracks,
the audio system will treat the CD as a con-
ventional audio CD. This means that it is only
possible to access the audio CD tracks.
Access to the MP3/WMA tracks is not pos-
sible.
Similarly, if the first session type is according
to the data CD standard containing MP3/
WMA tracks and the second session type is
according to the audio CD standard, the audio
system will treat the CD as a data CD. This
means that it is only possible to access the
MP3/WMA tracks. Access to the audio CD
tracks is not possible.
File structure on a disc
When you create an MP3/WMA disc, the
MP3/WMA tracks can be organized in fold-
ers. A folder can also contain other folders. A
disc can contain a maximum of 255 folders.
Each folder can contain a maximum of
255 tracks and 255 folders.
A data medium may contain a maximum of
500 tracks.
Track and folder names
When you create an MP3/WMA disc, you can
assign names to the MP3/WMA tracks and
folders.
The audio system uses these names for the
corresponding display in MP3 mode. Empty
folders or folders which contain data other
than MP3/WMA tracks are not displayed by
the audio system.
If MP3/WMA files are saved in the root direc-
tory itself (uppermost directory on storage
medium), the root directory will also be
treated as a folder. The audio system will then
show the name of the root directory as the
folder name.
You must observe the following when assign-
ing track names:
R
Track names must have at least one char-
acter.
R
Track names must have the extension
“mp3” or “wma”.
R
There must be a period between the track
name and the extension.
Example of a correct track name:
Track1.mp3
The audio system is unable to recognize an
MP3/WMA track if:
R
there is no period between the track title
and the extension
R
there is no extension
i The audio system does not support ID3
tags.
Compatible file systems and compression
methods
The following compression methods are com-
patible:
R
MP3
R
WMA
i If music files, created with different com-
pression methods, in addition to MP3 files,
are stored together on a disc, the loading
process may take longer before the first
track is played.
Permissible MP3 formats
The audio system supports the MPEG1 Audio
Layer 3 format.
i This format is generally known as “MP3”.
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