With formats other than ISO 9660 level 1 and level 2,
folder names or file names may not be displayed
About MP3 files
MP3 (MPEG 1 Audio Layer-3) is a standard
technology and format for compressing a sound
sequence. The file is compressed to about 1/10 of
its original size. Sounds outside the range of
human hearing are compressed while the sounds
we can hear are not compressed.
• When naming, be sure to add the file extension
.MP3” to the file name.
If you put the extension “.MP3” to a file other than
MP3, the unit cannot recognize the file properly and
will generate random noise that could damage your
The following discs take a longer time to start
a disc recorded with complicated tree structure.
a disc recorded in Multi Session.
a disc to which data can be added.
Notes on discs
You can play MP3 files recorded on CD-ROMs,
CD-Rs, and CD-RWs.
The disc must be in the ISO 9660*1 level 1 or
level 2 format, or Joliet or Romeo in the
Cautions when playing a disc that is recorded in
When the first track of the first session is audio CD
Only audio CD data of the first session is played
You can use a disc recorded in Multi Session*2.
Any data in subsequent sessions is skipped.
• When the first track of the first session is not audio
1 ISO 9660 Format
The most common international standard for
the logical format of files and folders on a
If an MP3 file is in the disc, only MP3 file(s) is
played back and other data is skipped. (Audio CD
data is not recognized.)
There are several specification levels. In
Level 1, file names must be in the 8.3 format
If no MP3 file is in the disc, “NO MUSIC” is
displayed and nothing is played back. (Audio CD
data is not recognized.)
no more than 8 characters in the name, no
more than 3 characters in the extension
.MP3”) and in capital letters. Folder names
can be no longer than 8 characters. There can
be no more than 8 nested folder levels. Level
specifications allow file names up to 31
Each folder can have up to 8 trees.
For Joliet or Romeo in the expansion format,
make sure of the contents of the writing
2 Multi Session
This is a recording method that enables
adding of data using the Track-At-Once
method. Conventional CDs begin at a CD
control area called the Lead-in and end at an
area called Lead-out. A Multi Session CD is a
CD having multiple sessions, with each
segment from Lead-in to Lead-out regarded
as a single session.
CD-Extra: The format which records audio
audio CD data) as tracks on session 1, and
records data as tracks on session 2.
Mixed CD: In this format, data is recorded as
track 1, and audio (audio CD data) is recorded
as track 2.