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MP3/WMA File Playback
MP3 (MPEG 1 Audio Layer-3) or WMA
(Windows Media Audio) is a standard
technology and format for compressing
audio data. This allows a more efficient
use of the media.
You can play MP3/WMA files recorded
on CD-ROMs, CD-Rs, and CD-RWs. The
disc must be in the ISO 9660 level 1 or
level 2 format, or Joliet or Romeo in the
expansion format. You can also use a
disc recorded in Multi Session.
ISO 9660 format
This is the most common international
standard for the logical format of files
and folders on a CD-ROM.
There are several specification levels.
In Level 1, file names must be in the 8.3
format (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 folder levels (trees). Level 2
specifications allow file names up to 31
characters long.
Each folder can have up to 8 trees.
For Joliet or Romeo in the expansion
format, please consider these
restrictions when configuring your CD
writing software.
Multi session
This is a recording method that enables
adding of data using the Track-At-Once
method.
Audio
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 that 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.
File formats
•
With formats other than ISO 9660
level 1 and level 2, folder names or
file names may not be displayed
correctly.
•
When naming, be sure to add the
file extension ".MP3" or "WMA" to
the file name.
•
If you put the extension ".MP3" or
"WMA" to a file other than MP3 or
WMA, the unit cannot recognise
the file properly and will generate
random noise that could damage
your speakers.
•
The following discs take a longer
time to start playback:
•
A disc recorded with
complicated tree structure.
•
A disc recorded in Multi Session.
•
A non-finalised disc to which data
can be added.
MP3/WMA files playback order
The playback order of the folders and
files is as shown.
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