MERCEDES-BENZ E-Class 2008 W211 Comand Manual

51 Audio
MP3 operation


MP3 operationSafety InstructionsWarning
G
In order to avoid distraction which could
lead to an accident, the driver should insert
CDs with the vehicle at a standstill and oper
-
ate the audio system only when road, weath
-
er and traffic conditions permit.Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approximate
-
ly 14 m) every second.
Warning
G
The CD drive is a Class 1 laser product.
There is a danger of invisible laser radiation
when you open or damage the cover.Do not remove the cover. The CD drive does
not contain any parts serviceable by the us
-
er. For safety reasons, have any necessary
service work performed by qualified person
-
nel.Tips on data storage media!Do not attach labels of any type to the
CD. They may become detached and
damage the drive.Do not play single-CDs (80 mm) with an
adapter. Only use 12 cm diameter CDs.
!Your CD drive has been designed to
play CDs which correspond to the IEC
60908 standard. Therefore only CDs
not exceeding a thickness of 1.3 mm
can be used.If you insert thicker data carriers, e.g.
ones that have data on both sides (one
side with DVD data, the other side with
audio data), they cannot be ejected
and will damage the drive.Data carriers which contain data on
both sides can cause playback prob
-
lems because the storage layers are
thinner than one-sided data carriers.

52 AudioMP3 operation
Only touch the CD on the edges.

Clean the CD with a dry, lint-free cloth.
Wipe the CD a straight line from the
center. Never wipe the CD in a circular
motion.

Do not use rubbing alcohol or solvents
to clean CDs.

Do not expose the CDs to heat or direct
sunlight.

Do not write or put labels on CDs
Permissible MP3 CDs In MP3 mode COMAND can read CD-R and
CD-RW CDs.Permissible file systemsThe permitted file system is

ISO9660/Joliet for CD-R and CD-RW.Multi session discsWith multi session discs, the content of the
first session determines how COMAND
treats the CD.
For example, if the first session contains
data in audio CD format and the second
session contains data in MP3 format,
COMAND will treat the CD as a conven
-
tional audio CD.File structureWhen creating an MP3 CD, you can orga
-
nize MP3 tracks into folders. A folder can
also contain additional folders. The root directory may have a maximum of
255 entries in total (folders or tracks).

A CD may have a maximum of 255 folders
in total. A maximum of 255 tracks are per
-
missible per folder.Mathematically a maximum of 65025
tracks would result. However, this amount
is usually not reached since MP3 requires
approx. 1 MB storage per minute recorded.
Tips on caring for your MP3 CDsTips on creating MP3 CDs iCDs, software and hardware for writing
audio data to CDs are widely available.
Therefore, we cannot guarantee that
COMAND will be able to play every
user-written CD.
iProblems may be encountered during
playback of user-written CDs with a
storage capacity of more than 700 MB.
These CDs do not meet valid standards
as of this printing.

53 Audio
MP3 operation
Track names and folder namesWhen creating an MP3 CD, you can assign
names to the MP3 tracks and folders.

COMAND uses these names in MP3-mode
for the corresponding display.Please note the following when assigning
track and folder names:
Per folder a maximum of 1800 charac
-
ters are available for title and folder
names combined.

Exceeding this number, COMAND can
-
not display all titles and folders.

Track and folder names must contain
at least 1 character.

Track names may contain up to fifty
characters. If a track name exceeds
this character limit, COMAND will not
be able to display it in full.

Track names must have the file exten
-
sion “mp3”.

A period must appear between the
track name and the file extension.Example of a correct track name:
Track1.mp3
Empty folders or folders containing data
other than MP3 tracks will not be dis
-
played by COMAND.If MP3 files are stored in the root directory
itself, the root directory also counts as a
folder. COMAND will then display the root
directory name as a folder name. Permissible MP3 formatsCOMAND supports the

MPEG1 Audio Layer 3 format.
Permissible bit and scan rates 
Fixed and variable bit rates up to
320
kbps

Scan rates from 24 kHz - 48
kHz
iCOMAND does not support ID3
tags.
Tips on creating MP3 tracks
iIn everyday speech, this format has
been replaced by the designation
“MP3”.iIt is recommended to use MP3 tracks
with a bit rate of 128 kbps or higher
and with a scan rate of 44.1 kHz or
higher. Lower rates may impair quality.
This is particularly true if the Sound
function*
LOGIC7 Surround
has been
activated.

54 AudioMP3 operationThe music tracks that you can create for
play back in MP3 mode are generally copy
-
right-protected under applicable interna
-
tional and national laws.

In many countries, the reproduction of
copyrighted material is not permitted,
even if only for personal use, without the
express prior consent of the copyright
holder.Please check the current copyright laws
for your country and comply with them.

These restrictions do not apply for exam
-
ple to your own compositions and record
-
ings, or for recordings for which
authorization has been obtained from the
copyright holder.

Call up the MP3 main menu ( page
55)
.
or
Insert an MP3 CD into COMAND.
The COMAND CD drive holds one CD. The
slot for inserting a CD is located above the
display
( page
17)
.
Tips on copyright
Switching to MP3 mode Loading an MP3 CDWarning
G
In order to avoid distraction which could
lead to an accident, the driver should insert
CDs with the vehicle at a standstill and oper
-
ate the audio system only when road, weath
-
er and traffic conditions permit.Warning
G
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approximate
-
ly 14 m) every second.
!If a CD is already loaded, it must be
ejected before inserting the new CD.

Inserting a second CD in the slot with
another CD still loaded will cause dam
-
age to the CD drive not covered by the
Mercedes-Benz Limited Warranty.

55 Audio
MP3 operation

Insert a CD into the CD slot while
COMAND is switched ON. Insert the
CD face up.COMAND pulls the CD in and loads the
data. It may take a while to load the da
-
ta, depending on the number of folders
and tracks.

After loading, COMAND plays the CD.

Press
7
.
COMAND ejects the CD.

Remove the CD from the slot.The CD will be pulled in again if it is not
removed from the slot within approx. 7
seconds.

Open the Audio main menu ( page
36)
.

Press the
MP3
soft key.
COMAND loads the data on the CD. It may take a while to load the data, de
-
pending on the number of folders and
tracks contained on the CD.
Once the data has been loaded, the
MP3 main menu appears. You will hear
the last track played.
1Current folder2Current track3Elapsed track playing time4Track number within the current fold
-
er/number of tracks in current folder
Ejecting an MP3 CD MP3 main menu
iThe
MP3
soft key will only appear if an
MP3 CD has been loaded.

56 AudioMP3 operationIf the MP3 tracks are organized into folders
on the disc, you can select a folder from
the COMAND control unit.The following options are available:
Selecting via folder list

Selecting via extended folder list
Selecting via folder list
Only one folder can be viewed at a time. 1Current folder
Press
 or  to select a folder.

Wait approx. 3 seconds without chang
-
ing the selection. The COMAND changes the folder and
loads the data from the new folder.

It may take a while to load the data, de
-
pending on the number of folders and
tracks.
Selecting via extended folder list
In the MP3 main menu
( page
55)

press the
Folder
soft key.
The extended folder list appears.

Use
 or  to select a folder.
iOn MP3 tracks with variable bit rates,
the elapsed track playing time dis
-
played may deviate from the actual
time elapsed.Selecting folders iThe folder list only contains folders in
which MP3 tracks are stored.
iThe extended folder list only contains
folders in which MP3 tracks are stored.

57 Audio
MP3 operation

Press
.
The COMAND changes the folder and
loads the data from the new folder.

It may take a while to load the data, de
-
pending on the number of folders and
tracks.
You may select a track in the current fold
-
er.The following options are available:
Selecting via manual entry of the track number
( page
58)

Selecting via scan search
( page
58)

Selecting via track skip

Selecting via track list
Selecting via track skip On the COMAND control unit
Open the MP3 main menu
( page
55)
.

Press
-
for forward skipping.
or
Press
,
for backward skipping.
On the multifunction steering wheel 
Switch the multifunction display in the
instrument cluster to the audio display ( page
25)
.

Press
j for forward skipping.
or
Press
k for backward skipping.
Selecting via track list The track list contains all tracks in the cur
-
rent folder. Only one track can be viewed
at a time.
Selecting a track
iForward skipping:

The next track is played.
iBackward skipping:

The system skips back to the beginning
of the track if more than approx. 10
seconds playing time of the track cur
-
rently playing have elapsed.

The system skips back to the beginning
of the previous track if less than 10
seconds playing time of the track cur
-
rently playing have elapsed.

58 AudioMP3 operation1Current track
Use
 or  to select another track
from the list.

Press

, or wait approx. 3 seconds
without changing the selection.
The selected track is played.
Selecting via manual entry of the track
number
Open the MP3 main menu
( page
55)
.

Press
2
.
The Manual track input display ap
-
pears.
1Number of tracks in the current folder
(10 tracks)Entry example: Track 1
Press
3.
Entry example: Track 10
Press
3 and " in quick succession.

Wait approx. 3 seconds after entering
the number. The selected track is played.
Selecting via scan search Scan search is characterised as follows:
Scan search plays each track in the
current folder for approx. 8
seconds.

Scan search can be ended manually.

Scan search automatically stops at the
track listened to before the scan
search was started.iEntries beyond the number of available
tracks in the current folder are not pos
-
sible.

59 Audio
MP3 operation
Starting scan search
In the MP3 main menu
( page
55)

press the
Scan
soft key.
The scan search starts.
Ending scan search manually 
Press the
Scan
soft key.
The track playing at the time the scan
is ended remains playing.

Open the MP3 main menu
( page
55)
.

Press and hold
-
or
,
.

To stop release
-
or
,
.
The following options are available:
Normal sequence

The COMAND plays tracks in a folder in
succession.

Once all the tracks in a folder have
been played, COMAND begins playing
the track(s) in the next folder on the
disc.

Repeat track

The current track will be repeated until
this function is deactivated.

Repeat folder

The tracks in the current folder will be
repeated until this function is deacti
-
vated.

The track sequence is the same as the Normal sequence
option.

Random track

This option is restricted to the tracks in the
current folder. The tracks are played in ran
-
dom order.

Random folder

All tracks on the CD are played in random
order.
Switching the playback option 
In the MP3 main menu
( page
55)

press the
Setting
soft key.
The Setting menu appears.

The solid circle
indicates which op
-
tion is currently selected.
iThe scan search will not function if the
current folder only contains one track.When you start the scan search, play
-
back option
Normal sequence
is activat
-
ed automatically. Therein scan search
is restricted to the current folder.
Fast forward/reverse Playback options


60 AudioMP3 operation
Use
 or  to select a different op
-
tion.

Press
.
The option is switched on. A corresponding display will appear in
the status bar for all options except Normal sequence
.
An option will remain activated even if
the COMAND is switched OFF and then
ON again.