I
MP3 Mode Operations
What
is MP3?
MP3
is an audio compression method and clas-
sified into audio layer 3 of MPEG standards. This
audio compression method has penetrated into
PC users and become a standard format. This
MP3
features the original audio data compres-
sion to about 12 percent of its initial size with a
high quality sound. This
means
that about 10
music
CDs
can be recorded on a CD-R disc or
CD-RW
disc to allow a long listening time with-
out
having to change CDs.
Precautions when creating MP3 disc
• File extensions
• Always add a file extension ".MP3"
to
MP3
file
by
using single byte letters. If you
add
a file extension
other than specified or forget to
add
the file exten-
sion, the file cannot
be
played.
• Logical format (File system)
• When writing
MP3
file
on
a CD-R disc
or
CD-RW
disc,
please select "1809660 level 1
,2,3
or
JOLIET
or
Romeo" as the writing software format. normal
play may not
be
possible
if
the disc
is
recorded
on
another format.
• The folder name
and
file name
can
be
displayed
as the title during MP3 play but the title must
be
within
16
(Folder Name) or
28
(File Name) single
byte alphabetical letters
and
numerals (excluding
an
extension).
• Number of files or folders
• The MP3 recording media reproducible
on
this unit
has
the following limitations:
1.
Maximum number
of
files: 254
2.
Maximum number
of
folders: 128
3.
80me noise may occur depending
on
the type
of
encoder software used while recording.
Folder up down function
1.
This function enables you to search for a folder
on the MP3 CD. The LCD will show the target
MP3 CD folder.
[UP] - Folder up
[DN] - Folder down
2. When a desired folder is selected, the MP3
CD player will play 1st track of target folder.
Note:
• The folder which contents of
no
MP3 file will
be
skipped.
14 DB355MP
MP3 playing order
When selected for play folder up down functions,
files and folders are accessed
in
the order
in
which
they were written by the CD-ROM writer.
Because
of
this, the
order
in which
they
are
expected to be played may not match the order
in
which they are actually played. You
may
be able
to set the order in which MP3 are to be played by
writing them onto a medium such as a CD-R with
their file names beginning with play sequence
numbers such as "01" to "99", depending on your
CD writer.
For example, a medium with the following folder/
file hierarchy is shown below.
Example of a medium's folder/file hierarchy
o
Level
1
Level
2
Level
3
Level
4
Root
V
Folder
B
File
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