2007 MERCEDES-BENZ SLK-Class audio

50 Audio
Single CD operation
Insert a CD into the CD slot while
COMAND is switched ON. Insert the
CD face up.
COMAND pulls in the CD. If the CD is
an audio CD, the system switches to
Single CD mode and starts playing the
first track.
Press/.
COMAND ejects the CD.
Remove the CD from the slot.
If you do not remove the CD from the
slot within approx. 7 seconds, the CD is
pulled back into the CD drive.
Open the Audio main menu
(
page 38).
Press the CD soft key.
The system switches to Single CD
mode and starts playing the first track.
The center of the status bar shows:
The track number and total number
of tracks
The elapsed playing time of the
track1Track title or track number
2Elapsed track playing time
3Track number/total tracks
The Single CD main menu shows the track
title in the center if the CD contains corre-
sponding text data.
If the CD does not contain any CD text da-
ta, the track number is displayed instead of
the track title.
i
If the CD is an MP3 CD, the system
switches to MP3 mode (
page 57).
Ejecting a CD
Single CD main menu
i
The CD soft key is shaded out if no CD
is loaded. The system will not switch to
Single CD mode.
Load an audio CD into the
COMAND CD drive (
page 49)
The
MP3 soft key instead of the CD soft
key is visible when a MP3 CD has been
inserted.

51 Audio
Single CD operation
The following options are available:
Selecting via track skip
Selecting via track list (page 51)
Selecting via manual entry of the track
number (
page 52)
Selecting via scan search (page 52)
Selecting via track skipOn the COMAND control unit
Open the Single CD main menu
(
page 50).
Press+7for forward skipping;
or
Press, for backward skipping.
The tracks skip immediately after
pressing one of the buttons.
On the multifunction steering wheel
Switch the multifunction display in the
instrument cluster to the Single CD dis-
play (
page 27).
Pressj for forward skipping;
or
Pressk for backward skipping.
The tracks skip immediately after
pressing one of the buttons.Selecting via track list
The track list contains all tracks of the cur-
rent CD. Only one list entry is visible at a
time, it is the number of the track currently
playing.
Use% or & to select another track
from the list.
The current track remains playing while
selecting.
Press' or wait approx. 3 seconds
without changing the selection.
The newly selected track is played.
Selecting a track
i
Forward skipping:
The next track is played.
Backward skipping:
If the track has been playing longer
than approx. 10 seconds, the system
skips back to the beginning of the
track.
If less than 10 seconds have played,
the system skips back to the beginning
of the previous track.

52 Audio
Single CD operation
Selecting via manual entry of the track
number
Open the Single CD main menu
(
page 50).
Press..
The Manual track input display ap-
pears.
1Number of tracks on the CD (12 tracks)
Entry example: Track 1
Press!.Entry example: Track 12
Press! and A in quick succession.
Wait approx. 3 seconds after entering
the number.
The selected track is played. The CD
main menu appears.
Selecting via scan search
Scan search is characterized as follows:
Scan search plays each track on the
current CD 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.Starting scan search
Press the Scan soft key.
Ending scan search manually
Press the Scan soft key.
The track playing at the time the scan
is ended remains playing.
Open the Single CD main menu
(
page 50).
Press and hold+ or,.
To stop release+ or,.
i
Entries beyond the number of available
tracks on the CD are not possible.
i
When you start the scan search, play-
back option
Normal Sequence
(page 53) is activated automatically.
Fast forward/reverse

53 Audio
Single CD operation
The following options are available:
Normal sequence
Repeat track
Random track
Explanation of the playback options
Normal sequence
The tracks are played in the normal se-
quence (e.g. track 1, 2, 3 etc.).
The last track is followed by the first
track of the CD.
Repeat track
The current track will be repeated until
this function is deactivated.
Random track
The tracks are played in random order
(e.g. track 3, 8, 5 etc.).Changing the playback option
In the Single CD main menu
(
page 50) press the Setting soft key.
The Settings menu is displayed.
The solid circle indicates which op-
tion is currently selected.
Press% or & to select a different
option.
Press'.
The option is activated. A correspond-
ing display will appear in the status bar
for all options except
Normal sequence. An option will remain activated even if
C O M A N D i s s w i t c h e d O F F a n d t h e n O N
again.
Playback options

54 Audio
MP3 operation
i
Depending on vehicle production date
COMAND may not be equipped with
the MP3 functionality. If so, the CD
changer* may be used for playback of
MP3 CDs.
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 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.
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 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 (80mm) with an
adapter. An adapter could become
stuck and damage the drive. 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 will become stuck and
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.

55 Audio
MP3 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 CDsPermissible MP3 CDs
I n M P 3 m o d e C O M A N D c a n r e a d C D - R a n d
CD-RW CDs.
Permissible file systems
The permitted file system is
ISO9660/Joliet for CD-R and CD-RW.
Multi session CDs
With multi session CDs, 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 structure
W h e n c r e a t i n g a M P 3 C D , y o u c a n o r g a n i z e
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 CDs
Tips on creating MP3 CDs
i
CDs, 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.
i
Problems 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.

56 Audio
MP3 operation
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:
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 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 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 formats
COMAND 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
.
i
COMAND does not support ID3 tags.
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
w i t h a b i t r a t e o f 1 2 8 k b p s o r h i g h e r a n d
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.

57 Audio
MP3 operation
The 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.Open the MP3 main menu (page 58);
or
Load a n MP3 CD int o t he COMA ND CD
drive.
The COMAND CD drive holds one CD. Lo-
cated above the display is the CD slot 3
for loading the drive (
page 16).
Tips on copyrightSwitching to MP3 mode
i
Depending on vehicle production date
COMAND may not be equipped with
the MP3 functionality. If so, the CD
changer* may be used for playback of
MP3 CDs.
Loading a MP3 CD
WarningG
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.
WarningG
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.