display MERCEDES-BENZ SLK-Class 2006 R171 Comand Manual

55 Audio
Single CD operation
On the COMAND control unit
Open the Single CD main menu
(
page 53).
Pressfor 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 via manual entry of the track
number
Open the Single CD main menu
(
page 53).
Press.
The Manual track input display ap-
pears.


57 Audio
Single CD operation
Open the Single CD main menu
(
page 53).
Press and hold or.
To stop release or.
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 53) 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
COMAND is switched OFF and then ON
again.
Fast forward/reverse
Playback options

60 Audio
MP3 operation
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
When creating a MP3 CD, you can organize
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.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
In the example, the track name con-
tains six characters, followed by a peri-
od and the file extension “mp3”.
Empty folders or folders containing data
other than MP3 tracks will not be dis-
played by COMAND.

61 Audio
MP3 operation
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
.
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.
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
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

62 Audio
MP3 operation
Open the MP3 main menu (page 63);
or
Load an MP3 CD into the COMAND 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).
Insert a MP3 CD face up into the CD
slot while COMAND is switched ON.
COMAND pulls in the CD 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.
Switching to MP3 mode
i
MP3 CDs can only be played back in
the COMAND CD drive.
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.
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.

64 Audio
MP3 operation
If the MP3 tracks are organized into folders
on the CD, you can select a folder from the
COMAND control unit.
The following options are available:
Selecting via folder list
Selecting via extended folder listSelecting via folder list
Only one folder can be viewed at a time.
1Current folder
Open the MP3 main menu (page 63);
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
i
On MP3 tracks with variable bit rates,
the elapsed track time displayed may
deviate from the actual time elapsed.
Selecting folders
i
The folder list only contains folders in
which MP3 tracks are stored.
i
The extended folder list only contains
folders in which MP3 tracks are stored.

66 Audio
MP3 operation
For forward skipping press;
or
For backward skipping press.
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 MP3 display
(
page 27).
For forward skipping pressj;
or
For backward skipping pressk.
The tracks skip immediately after
pressing one of the buttons. Selecting via track list
The track list contains all tracks in the cur-
rent folder. Only one track can be viewed
at a time.
1Current track
Open the MP3 main menu (page 63);
Press or  to select a different
track.
The current track remains playing while
selecting.
Press, or wait approx. 3 seconds
without changing the selection.
The selected track is played.
Selecting via direct entry of the track
number
Open the MP3 main menu (page 63).
Press.
The Manual track input display ap-
pears.

69 Audio
MP3 operation
Repeat track
The COMAND will repeat the current
track until this function is canceled.
Repeat folder
The COMAND will repeat the tracks in
the current folder until this function is
canceled.
The track sequence is the same as the
Normal sequence option.
Track Random
This option is restricted to the tracks in
the current folder. The tracks are
played in random order.
Folder Random
All tracks on the CD are played in ran-
dom order.Changing the playback option
In the MP3 main menu (page 63),
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
COMAND is switched OFF and then ON
again.

76 Audio
CD changer* operation
The CD changer main menu appears.
You will hear the CD listened to last. If
this CD is no longer available, the unit
plays the next available audio CD.
The status bar also contains:
The track number and total number
of tracks on the current CD
The elapsed playing time of the
track1CD name or CD number
2Elapsed track playing time
3Track number/total tracks
4Track title or track number
The CD changer main menu shows the CD
title at the top and track title in the center
of the main area if the CD contains corre-
sponding text data.If the CD does not contain any CD text da-
ta, the number of the CD and the track
number are displayed instead of the name
of the CD and the track title.
The numbers 1 through 6 are assigned to
the CD compartments of the CD changer.
Available choices:
Selecting via CD list
Selecting via direct entry of the CD
number (
page 77)
Selecting via CD Selection menu
(
page 77)
i
The CDC soft key is shaded out if no CD
is loaded. The system will not switch to
CD changer mode.
Load an audio CD into the CD
changer (
page 71).
The
CDC soft key will only be visible if a
CD changer is connected.
Selecting CDs

77 Audio
CD changer* operation
Selecting via CD list
The CD list contains all loaded CDs. Only
one entry is visible at a time. Its name or
number is shown at the top of the CD
changer main menu (in this example:
CD 5).Use or  to select another CD
from the list.
Wait approx. 3 seconds without chang-
ing the selection.
The CD is changed. The newly selected
CD is played.
Selecting via direct entry of the CD
number
Press one of the  -  keys.
The CD changer switches to the CD
loaded in the appropriate CD changer
compartment.Selecting via CD Selection menu
Press the Magaz. soft key.
The CD Selection menu appears. You
see the list of all six compartments.
An entry shows the CD title if the CD con-
tains corresponding text data.
No text displayed with a CD symbol indi-
cates that the corresponding CD does not
contain any CD text data.i
This selection is possible only if at least
two audio CDs are loaded.i
The system will skip empty CD changer
compartments.
i
The CD fails to be changed if you select
an empty compartment.