display MERCEDES-BENZ SLK-Class 2007 R171 Comand Manual

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

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
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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.

58 Audio
MP3 operation
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.
Press/.
COMAND ejects the CD.
Remove the CD from the slot.
If you do not remove the CD from the
slot, COMAND will automatically pull it
back after approx. 7 seconds.
Open the Audio main menu
(
page 38).
Press the MP3 soft key.
COMAND loads the MP3 CD data. This
may take a while depending on the
number of folders and tracks.
The MP3 main menu appears. You will
hear the last track played.1Current folder
2Current track
3Elapsed track time
4Track number within the current fold-
er/number of tracks in current folder
Ejecting a MP3 CD
MP3 main menu
i
The MP3 soft key will only appear if an
MP3 CD has been loaded.
i
On MP3 tracks with variable bit rates,
the elapsed track time displayed may
deviate from the actual time elapsed.

60 Audio
MP3 operation
Press'.
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.
The following options are available:
Selecting via track skip (page 60)
Selecting via track list (page 60)
Selecting via direct entry of the track
number (
page 61)
Selecting via scan search (page 61)Selecting via track skip
On the COMAND control unitOpen the MP3 main menu (page 58).
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.
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.

61 Audio
MP3 operation
1Current track
Open the MP3 main menu (page 58);
Press% or & to select a different
track.
Th e c u r r e n t t r a c k r e m a i n s p l a y i n g w h i l e
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 58).
Press..
The Manual track input display ap-
pears.
1Number of tracks in the current folder
(10 tracks)
Example entry: Track 1
Press!.Example entry: Track 10
Press! and " in quick succession.
Wait approx. 3 seconds after entering
the number.
The selected track is played.
Selecting via scan search
Scan search is characterized 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.
i
It is not possible to enter a number
greater than the number of tracks in
the current folder.

62 Audio
MP3 operation
Starting scan search
In the MP3 main menu (page 58)
press the
Scan soft key.
The scan search starts.
Ending scan search manually
Press the Scan soft key.
The track playing when scan search is
ended remains selected.
Open the MP3 main menu (page 58).
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
CD.
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 58),
press the
Setting soft key.
The Settings menu is displayed.
The solid circle indicates which op-
tion is currently selected.
i
The scan search will not function if the
current folder only contains one track.
When you start scan search, playback
option
Normal sequence (page 62) is
activated automatically.
Therein scan search is restricted to the
current folder.
Fast forward/reverse
Playback options

63 Audio
MP3 operation
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.

70 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 71)
Selecting via CD Selection menu
(
page 71)
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).
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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 65).
The
CDC soft key will only be visible if a
CD changer is connected.
Selecting CDs
i
This selection is possible only if at least
two audio CDs are loaded.