Owner's Manual
Table Of Contents
USB
Operations
What
isAAC?
• AAC is an acronym
for
"Advanced
Audio
Coding"
and refers to the audio compression
method used with video compression standards
MPEG-2 and MPEG-4.
• AAC files composed with the following condi-
tions can be played:
• AAC files encoded with iTunes.
• iTunes
Ver.
7.0 or earlier.
• File extension ".m4a" (".M4A")
• Tracks purchased at an iTunes Store, and
copyright-protected files cannot be played.
• When playing AAC files that include image data,
additional time may
be
required before playback
begins.
• Files may not play properly, depending on the
iTunes version under which
an
AAC file is en-
coded.
Precautions
when
creating
MP31
WMAlAAC
file
• Usable sampling rates and bit rates
See "USB" (page 42) for details.
• File extensions
1.
Always add a file extension ".MP3", ".WMA"
or ".M4A" to MP3, WMA or AAC file by using
single byte letters. If you add a file extension
other than specified or forget to add the file
extension, the file cannot be played.
2.
Files without MP3IWMA/AAC data will not
play.
The indication "NO FILE" appears
in
the play
time display if you attempt to play files without
MP3IWMA/AAC data.
'"
When
VBR
files
are
played,
the
play
time
display
may
differ
the
play location.
*
When
MP3IWMA/AAC files
are
played, a little
no
sound
part
is
caused between tunes.
• Logical format (File system)
1.
When writing MP3/WMA/AAC file, please
select "FAT12", "FAT16" or "FAT32" as the
file system format. Normal play may not be
possible if the files are recorded on another
format.
2.
The folder name and file name can be dis-
played as the title during MP3/WMA/AAC
play but the title must be within 64 single byte
alphabetical letters and numerals (including
an
extension).
3.
Do not affix a name to a file inside a folder
having the same name.
Note:
•
File
names
in
small
letters
with
less
than
8 charac-
ters (not
inclUding
file extension)
will
be
displayed
in
capital letters.
• Folder structure
1.
A USB with a folder having more than 8 hier-
archicallevels will
be
impossible.
• Number
of
files
or
folders
1.
Up to 255 files per folder can be recognized.
Up to 512 folders can be recognized and up
to total of 130560 files can played.
2.
Tracks are played
in
the order that they were
recorded onto a USB. (Tracks might not always
be played
in
the order displayed on the PC.)
3.
Some noise may occur depending on the type
of encoder software used while recording.
•
Insert
and
remove
a USB
memory
device
only
when
the
device
is
not
being accessed.
Connecting
or
disconnecting
the
device
at
the
following
times
may
result
in
the
loss
of
data:
-
If
the
USB memory
device
is
removed
or
power
is
disconnected
during
writing
to
the
device.
-
When
the
device
is
subjected
to
static
electricity
or
electric
noise.
• Do
not
leave a USB
memory
device
unat-
tended
in
an
automobile.
Exposure
to
direct
sunlight
or
high
temperatures
may
cause
deformation
or
other
malfunction
of
the
USB
memory
device.
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