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3295-4. Playing an audio CD and MP3/WMA discs
5
Audio system
AVENSIS_OM_OM20C20E_(EE)●
Compatible disc formats
The following disc formats can be used.
• Disc formats: CD-ROM Mode 1 and Mode 2
CD-ROM XA Mode 2, Form 1 and Form 2
• File formats: ISO9660 Level 1, Level 2, (Romeo, Joliet) MP3 and WMA files written in any format other than those listed above
may not play correctly, and their file names and folder names may not be
displayed correctly.
Items related to standards and limitations are as follows.
• Maximum directory hierarchy: 8 levels
• Maximum length of folder names/file names: 32 characters
• Maximum number of folders: 192 (including the root)
• Maximum number of files per disc: 255
● File names
The only files that can be recognized as MP3/WMA and played are those
with the extension .mp3 or .wma.
● Multi-sessions
As the audio system is compatible with multi-sessions, it is possible to play
discs that contain MP3 and WMA files. However, only the first session can
be played.
● ID3 and WMA tags
ID3 tags can be added to MP3 files, making it possible to record the track
title, artist name, etc.
The system is compatible with ID3 Ver. 1.0, 1.1, and Ver. 2.2, 2.3 ID3 tags.
(The number of characters is based on ID3 Ver. 1.0 and 1.1.)
WMA tags can be added to WMA files, making it possible to record the
track title and artist name in the same way as with ID3 tags.
● MP3 and WMA playback
When a disc containing MP3 or WMA files is inserted, all files on the disc
are first checked. Once the file check is finished, the first MP3 or WMA file
is played. To make the file check finish more quickly, we recommend you do
not write in any files other than MP3 or WMA files or create any unneces-
sary folders.
If the discs contain a mixture of music data and MP3 or WMA format data,
only music data can be played.
● Extensions
If the file extensions .mp3 and .wma are used for files other than MP3 and
WMA files, they will be mistakenly recognized and played as MP3 and
WMA files. This may result in large amounts of interference and damage to
the speakers.
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3305-4. Playing an audio CD and MP3/WMA discs
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Playback
• To play MP3 file with steady sound quality, we recommend a fixed bit rate
of 128 kbps and a sampling frequency of 44.1 kHz.
• CD-R or CD-RW playback may not be possible in some instances, depending on the characteristics of the disc.
• There is a wide variety of freeware and other encoding software for MP3
and WMA files on the market, and depending on the status of the encod-
ing and the file format, poor sound quality or noise at the start of playback
may result. In some cases, playback may not be possible at all.
• When files other than MP3 or WMA fi les are recorded on a disc, it may
take more time to recognize the disc and in some cases, playback may
not be possible at all.
• Microsoft, Windows, and Windows Media are the registered trademarks of Microsoft Corporation in the U.S. and other countries.
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3315-4. Playing an audio CD and MP3/WMA discs
5
Audio system
AVENSIS_OM_OM20C20E_(EE)NOTICE
■
Discs and adapters that cannot be used
Do not use the following types of discs.
Also, do not use 8 cm (3 in.) disc adapters, DualDiscs or printable discs.
Doing so may damage the player and/or the disc insert/eject function.
●Discs that have a diameter that is not 12 cm (4.7 in.).
● Low-quality or deformed discs.
● Discs with a transparent or translucent recording area.
● Discs that have tape, stickers or CD-R labels attached to them, or that
have had the label peeled off.
■ Player precautions
Failure to follow the precautions below may result in serious damage to the
discs or the player itself.
●Do not insert anything other than discs into the disc slot.
● Do not apply oil to the player.
● Store discs away from direct sunlight.
● Never try to disassemble any part of the player.
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