Mp3 overview – EXONIC 500 User Manual
Page 8

EN - 7
Note on MP3
“MP3” technology (mpeg audio layer3)
reduces the digital data of an audio CD
significantly while maintaining CD-like sound
quality.
• MP3 is a music compression technology,
MP3 (mpeg audio layer 3) reduces the
digital data of an audio CD significantly
while maintaining CD-like sound quality.
• This product allows playback of MP3 files
on CD-ROM, CD-R or CD-RW discs.
• The unit can read MP3 files written in the
format compliant with ISO 9660. However
it does not support the MP3 data written by
packet writing.
• The unit can not read an MP3 file that has
a file extension other than “.mp3”.
• If you play a non- MP3 file that has the
“ .mp3 “ extension, you may hear some
noise.
• In this manual, we refer to what are called
“MP3 file” and “folder” in PC terminology
as “track” and “album” respectively.
• Maximum number of directory is 128,
maximum number of directory level is 8,
including the root directory. Maximum
number of MP3 files per disc is 1000.
• The unit may not play tracks in the order of
track numbers.
• The unit support multi-session disc with
MIXED & EXTRA format, but plays the
MP3 tracks is priority. MIXED format: disc
structure first is MP3 data, second is audio
data.
EXTRA format: disc structure first is audio
data, second is MP3 data.
• The unit support all MPEG bit rate
including free format for MPEG 1 audio
layer 3, support all MPEG bit rate except
8kbps and free format for MPEG 2 audio
layer 3.
• T h e u n i t s u p p o r t 3 2 / 4 4 . 1 / 4 8 k H z
sampling rate for MPEG 1 audio layer
3, 32/44.1/48kHz and 16/22.05/24kHz
sampling rate for MPEG 2 audio layer
3, and 44.1kHz sampling rate for VBR
(Variable Bit Rate) .
How to get music files
• Either download legal music files from
the internet to your computer hard disc or
create them from your own audio CDs. For
this, insert an audio CD into your computer
CD-RW drive and convert the music using
an appropriate encoding software.
Note on creating your own CD-Rs or
CD-RWs containing MP3 files
• To enjoy high quality music, we
recommend converting MP3 files with a
sampling frequency of 44.1 kHz and a
fixed bit rate of 128 kbps.
• Do not store more than 1000 M P3files per
disc.
• For ISO 9660 -compliant format, the
maximum allowable depth of nested
folders is 8, including the root directory
(folder).
• When CD-R disc is used, playback is
possible only for discs which have been
finalized.
• Make sure that when M P3,CD-R or CD-
RW is burned that it is formatted as a data
disc and NOT as an audio disc.
• It is not recommended to write non-MP3
files or un-related folders along with MP3
files on the disc, otherwise it may take
longer time to start playing the MP3 music.
• With some CD-R or CD-RW media, data
may not be properly written depending on
their manufacturing quality.
In this case, data may not be reproduced
correctly. High quality CD-R or CD-RW
disc is recommended.
• Support ID3 tag Version 1.XX and 2.XX,
up to 16 characters can be displayed for
the title of the song, album and the artist.
• Note that the unit may not play tracks as
ripped and recorded.
MP3 OVERVIEW