MERCEDES-BENZ C-Class 2007 W203 Comand Manual

59 Audio
CD operation
Press a number key, e.g. 2 to select
the corresponding CD.
Loading CD 2 is displayed.
The CD is changed. The selected CD is
played back.
The message
No CD will
appear if a selected slot is empty.
In the Magazine menu
Press the Magaz. soft key.
The Magazine menu is displayed. If the
magazine has not been read in, the
message
Magazine scan
Please wait
is displayed first.
Push the joystick to g or G to
select a CD.
Press E.
or
Press one of the number keys 1 to
6.
The CD is changed. The message
Loading CD will appear.You can select a track:
with g or h (page 59)
with the joystick (page 60)
with the number keypad (page 60)
with CD track scan (page 61)
With g or h
Activate the main CD menu
(
page 56).
Next track
Press h.
The next track is played.
i
The name of the CD instead of e.g. CD1
is displayed if the information is
available.
Track select

60 Audio
CD operation
Previous track or start of title (if more
than 10 seconds of playing time has
elapsed)
Press g.
Playback begins.
Select any desired track
Press g or h as many times as
necessary.
With the joystick
Push the joystick to g or G to play
the next or previous track.With the number keypad
Activate the CD main menu
(
page 57).
Press *.
An input line will appear in the CD main
menu.
1Number of tracks on CD corresponds
with the valid number range
2Input line
E.g.: Track 14.
Press 1 and 4 in short succession.
After entering the track number, wait
approximately 3 seconds.
The selected track is played. The CD
main menu is displayed.
i
Entries higher than the number of
tracks available on the CD are not
possible.
During MP3 playback
CD drive:
You can select the tracks of the
current folder (
page 74).
CD changer*:
You can select the first 99 tracks of
a MP3 CD.

61 Audio
CD operation
CD track scan
The tracks on a CD can be scanned one
after the other for 8 seconds each. The
function will switch off automatically when
the starting track is reached. You can also
manually stop the scan function.
Activating
Press the Scan soft key.
Scan will begin.Ending the function
Scan search is running.Press the Scan soft key.
or
Press E.
Playback will resume with the desired
track.Fast forward
Press and hold h for more than 2
seconds.
Fast reverse
Press and hold g for more than 2
seconds.
Ending the function
Release h or g.
Playback will resume.
i
When you start the scan function, the
playback mode
Normal sequence
(
page 63) is automatically activated.
Fast forward/reverse

62 Audio
CD operation
On
Press J during playback.
The CD operation is muted and theß
symbol is displayed in the status bar.
The soft keys on the left side are
greyed out in some submenus.
Off
Press J again.
Playback will resume.
The ß disappears from the status bar.
The soft keys on the left side are
selectable again.The following options are available:
Normal sequence (page 63)
Track mix (page 64)
CD mix (page 64)
Repeat track (page 64)
Repeat CD (page 64)
Mutingi
COMAND will also deactivate if you
Press A, B, g, h
Change the volume at COMAND or
the multifunction steering wheel
Operate the joystick
Press any keypad button except #
Press j or k at the
multifunction steering wheel if the
audio menu is selected
Press any soft key.
Playback mode
i
If the CD changer* is connected, the
playback modes
Repeat CD and
CD mix are available additionally.

63 Audio
CD operation
Activating playback mode
E.g.:
Mode
Repeat track
Press the Setting soft key.
The setting menu will appear.
CD changer* setting menu
Push the joystick to g or G to
select the playback mode
Repeat
track
.
Press E.
The mode is activated. The CD
changer* main menu will then appear.
REPEAT TRACK will appear in the
status bar.Explanation of the playback modes
Normal sequence
Tracks are played in ascending order
(e.g. 1, 2, 3 and so on). If just one CD is
inserted, the first track is played when
the last one is over.
If more than one CD is available, the
first track of the next CD is played
when the last track of the current CD is
over. The CDs are changed in normal
order.
i
The playback mode Normal sequence
is not displayed in the status bar.

64 Audio
CD operation
Track mix
Tracks are played in random order. If
more than one CD is available, the next
available CD is played when the current
CD is over. The CDs are changed in
normal order.
CD mix (CD changer* only)
At least 4 tracks of any CD are played
in random order. Then follows the next
available CD. The CDs are changed in
random order.
Repeat track
The system repeats the current track
until you switch the function off.
Repeat CD (CD changer* only)
The system repeats the current CD
until you switch the function off.View track detail
At any time during playback an expanded
view of a track title can be displayed in the
CD main menu via a separate window.
Press the Detail soft key.
To cancel
Press the Detail soft key again.
or
The window will automatically disappear in
approx. 5 seconds.

65 Audio
MP3 CD operation

MP3 CD operation
Safety instructions
WarningG
In order to avoid distraction which could
lead to an accident, the driver should insert
CDs with the vehicle at a standstill and
operate the audio system only if permitted
by road, weather and traffic conditions.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your car covers a
distance of 44 feet (approximately 14 m)
every second.
WarningG
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 which can be serviced
by the user. For safety reasons, have any ne-
cessary service work performed by qualified
personnel.
Tips on data storage media
!
Do not attach labels of any type to the
CD. They may become detached and
damage the drive.
!
Your CD drive has been designed to
play CDs which correspond to the IEC
60908 standard. Therefore only CDs
not exceeeding 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 will become stuck and
damage the drive.
Do not play single CDs (80mm) with an
adapter. An adapter could become
stuck and damage the drive. Only use
12 cm diameter CDs.

66 Audio
MP3 CD 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 cold, 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 systems
The permitted file system for COMAND is
ISO9660/Joliet for CD-R and CD-RW.
Multi session CDs
Multi session CDs include mixed file types
(e.g. MP3 and audio CD) in either
successive or random order on the disc. In
MP3 mode, COMAND will integrate audio
CD tracks into the disc’s folder structure.
The CD audio track folder will appear first
followed by folders containing MP3 tracks.
Tips on caring for your MP3 CDsTips on creating MP3 CDs
i
CDs, software and hardware for writing
audio data to CDs vary widely.
Therefore, we cannot guarantee that
COMAND will be able to play every
user-written CD. Problems may also be
encountered during playback of user-
written CDs with a storage capacity of
more than 700 MB.

67 Audio
MP3 CD operation
File structure
When creating a MP3 CD, you can organize
MP3 tracks into folders. A folder can also
contain additional folders.
A CD may have a maximum of 255 folders
in total.
A maximum of 255 tracks are permissible
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.Track names and folder names
When 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
folder and track names:
Track and folder names must contain
at least 1 character.
Track names may contain up to either
thirty or fifty characters depending on
the CD format. If a name exceeds this
character limit, COMAND will not be
able to display it in full.
Track names must have the extension
“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 or audio CD tracks will not
be displayed by COMAND.

68 Audio
MP3 CD operation
If MP3 or audio CD 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 formats
COMAND supports the MPEG1
AudioLayer3 format.Permissible bit and scan rates
Fixed and variable bit rates up to 320
kbps
Scan rates from 24 kHz - 48 kHzThe music tracks that you can create for
play back in MP3 mode are generally
copyright-protected under applicable in-
ternational 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.
i
COMAND does not support ID3tags.
Tips on creating MP3 tracks
i
In everyday speech, this format has
been replaced by the designation
“MP3”.
i
It is recommended to use MP3 tracks
with a bit rate of128 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.
Tips on copyright