Sony CDX-M20 - Maintenance and File Format Details; Replacing the Remote Control Battery; Cleaning Unit Connectors; MP3 and WMA File Specifications

18
About MP3
files
• MP3, which stands for
MPEG-1
Audio
Layer-3,
is
a music file compression format
standard.
It
compresses audio CD data to
approximately 1
I
10
of
its original size.
• ID3 tag versions
1.0,
1.1, 2.2, 2.3
and
2.4
apply to MP3 only. ID3 tag
is
15/30
characters (
1.0
and
1.1
),
or
63/126 characters
(2.2, 2.3
and
2.4).
•
When
naming
an
MP3
file, be sure to add the
file extension
".mp3"
to the file name.
•
During
playback
or
fast-forward/reverse
of
a
VBR (Variable
Bit Rate)
MP3
file, elapsed
playing time may
not
display accurately.
I~Mij
If you play a high-bit-rate
MP3,
such
as
320
kbps,
sound may be intermittent.
About
WMA
files
•
WMA, which stands for Windows Media
Audio, is a music file compression format
standard.
It
compresses audio CD data to
approximately 1/22*
of
its original size.
•
WMA
tag is
63
characters.
•
When
naming
a
WMA
file, be sure to add
the file extension
".wma"
to the file name.
•
During
playback
or
fast-forward/reverse
of
a
VBR
(Variable Bit Rate)
WMA
file, elapsed
playing time may
not
display accurately.
*
only for
64
kbps
I~Mij
Playback
of
the following WMA files
is
not
supported.
- lossless compression
- copyright-protected
If
you have any questions
or
problems
concerning your
unit
that
are
not
covered in
this manual, consult your nearest
Sony
dealer.
Replacing the
lithium
battery
of
the
remote commander
When the battery becomes weak, the range
of
the remote commander becomes shorter.
Replace the battery with a new
CR2025
lithium battery.
Use
of
any other battery
may present a risk
of
fire
or
explosion.
+side
up
~~
~·~~~
Notes on the lithium battery
•
Keep the lithium battery
out
of
the reach
of
children. Should the battery be swallowed,
immediately consult a doctor.
•
Wipe the battery with a dry cloth to assure a
good contact.
•
Be
sure to observe the correct polarity when
installing the battery.
•
Do
not
hold the battery with metallic tweezers,
otherwise a short -circuit may occur.
WARNING
Battery may explode
if
mistreated.
Do not recharge, disassemble, or dispose
of
in fire.
Cleaning the connectors
The
unit
may
not
function properly if the
connectors between the
unit
and
the front
panel are
not
clean.
In
order
to prevent this,
detach the front panel (page
7)
and
clean the
connectors with a
cotton
swab. Do
not
apply
too
much
force. Otherwise, the connectors
may be damaged.