Mercedes-Benz C-Class 2009 COMAND Manual - Manual (Page 134)

CD Audio/DVD Audio/MP3
132
compression. You cannot delete data from or
record additional data to commercially
available, prerecorded audio DVDs. Please
note the following information about CDs/
DVDs and pay special attention to the notes
on copied and/or selfwritten CDs/DVDs.
Permissible Bit and Scan Rates
R Fixed and variable bit rates from 32 kbps
to 320 kbps
R Scan rates from 8 kHz to 48 kHz
i Only 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 result in
impaired sound quality. This is particularly
true if the surround sound function has
been activated.
WMA (Windows ® Media Audio) format of the
following type:
R fixed bit rates from 5 kBit/s up to
384 kBit/s
R sampling rates from 8 kHz to 48 kHz.
COMAND does not support WMA files of the
following type:
R DRM (Digital Rights Management)
encrypted files
i If other music files are stored in these
audio formats on a storage medium, in
addition to MP3 files, the loading process
may take longer before the first track is
played.
Notes about CD/DVD Discs
i Discs with copy protection do not comply
with the CD audio standard and in some
cases cannot be played by COMAND. When
playing copied discs, problems may occur
with the playback.
A wide variety of discs, disc writing software
and writers are available. Due to this variety
we cannot guarantee that the system will be
able to play discs that you have written/
copied yourself.
There may be playback problems with
userburned CDs with a storage capacity of
more than 700 MB. These CDs do not meet
current valid standards.
i When playing a DVD audio, it may be the
case with numerous albums that the last
track does not contain any music and
COMAND switches to the next track. This
is due to the production method and does
not imply a fault with the unit.
! Do not attach stickers or labels of any
kind to discs. They may come loose and
damage COMAND.
COMAND has been designed for discs
meeting the requirements of standard
EN
60908. Therefore, only discs with a
maximum thickness of 1.3 mm can be
used.
If a thicker disc is inserted, e.g. one which
stores data on both sides, (DVD on one
side, audio data on the other side), this
cannot be ejected and COMAND will be
damaged.
Do not use 8
cm diameter discs, not even
with an adapter. Only use round discs with
a diameter of 12
cm.
i COMAND can play audio CDs with the
highresolution surround format.
Audio