Multisession; Bit/Sampling Rates; File Systems; Formats - Mercedes-Benz COMAND Operating Instructions Manual

Audio CD/DVD and MP3 mode
136
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The "Normal track sequence" option is
automatically selected when you change
the medium you are currently listening to
or when you select a different medium. If
an option is selected, it remains selected
after COMAND is switched on or off.
Notes on MP3 mode
Permissible discs
CD-R and CD-RW
R
DVD-R and DVD-RW
R
DVD+R and DVD+RW
R
SD memory card:
R
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COMAND does not support the "SD-HC
2.0 Standard" SD card format. Mercedes-
Benz recommends using SD memory cards
with a storage capacity of up to 4 GB.
Permissible file systems
ISO 9660/Joliet standard for CDs
R
UDF for audio and video DVDs
R
FAT16 for SD memory cards with storage
R
medium

Multisession CDs

For multisession CDs, the content of the first
session determines how COMAND will
process the CD. COMAND plays only one
session and gives priority to the audio CD
session.
If possible, use COMAND to play only CDs
which have been written in one session.
File structure of a data carrier
When you create a disc with compressed
music files, the tracks can be organized in
folders. A folder may also contain subfolders.
A disc can contain a maximum of 255 folders.
Each folder can contain a maximum of
255 tracks and 255 subfolders. A disc can
contain a maximum of 1200 tracks.
The disc may contain no more than eight
directory levels. Files beyond the eighth level
will not be recognized by the system.
Track and file names
When you create a disc with compressed
music files, you can assign names to the
tracks and folders.
COMAND uses these names accordingly for
the display. Folders which contain data other
than MP3 or WMA tracks are not displayed by
COMAND.
If MP3 or WMA files are stored in the root
directory itself, the root directory will also be
treated as a folder. COMAND will then show
the name of the root directory as the folder
name.
You must observe the following when
assigning track names:
track names must have at least one
R
character.
track names must have the extension
R
"mp3" or "wma".
there must be a full stop between the track
R
name and the extension.
Example of a correct track name:
"Track1.mp3".
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COMAND does not support ID3 tags.
Permissible formats
COMAND supports the following formats:
MPEG1 Audio Layer 3 (MP3)
R
Microsoft Windows Media Audio V2, V7, V8
R
and V9 (WMA) without copy protection
Permissible bit and sampling rates
MP3
COMAND supports MP3 files of the following
types:
constant and variable bit rates from
R
32 kbit/s to 320 kbit/s
sampling rates of 8 kHz to 48 kHz
R