Mp3/wma player, Caution, What is mp3/wma – Panasonic CQ-C300U User Manual

Page 20: Points to remember when making mp3/wma files, Display information

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CQ-C300U

20

MP3/WMA Player

What is MP3/WMA?

MP3* (MPEG Audio Layer-3) and WMA (Windows Media

TM

Audio) are the compression formats of digital audio.
The former is developed by MPEG (Motion Picture
Experts Group), and the latter is developed by Microsoft
Corporation. Using these compression formats, you
can record the contents of about 10 music CDs on a
single CD media (This figures refer to data recorded on
a 650 MB CD-R or CD-RW at a fixed bit rate of 128 kbps
and a sampling frequency of 44.1 kHz).

* MPEG Layer-3 audio coding technology licensed from

Fraunhofer IIS and Thomson.

Note: MP3/WMA encoding and writing software is not
supplied with this unit.

Points to Remember When Making MP3/WMA Files

Common

• High bit rate and high sampling frequency are

recommended for high quality sounds.

• Selecting VBR (Variable Bit Rate) is not recommended

because playing time is not displayed properly and
sound may be skipped.

• The playback sound quality differs depending on

the encoding circumstances. For details, refer to
the instructions of your own encoding software and
writing software.

MP3

• It is recommended to set the bit rate to “128 kbps or

more” and “fixed”.

WMA

• It is recommended to set the bit rate to “64 kbps or

more” and “fixed”.

• Do not set the copy protect attribute on the WMA file

to enable this unit to play back.

Display Information

Displayed items

CD-TEXT

Disc title
Track title

MP3 (ID3 tag)

Album name
Title name/artist name

MP3/WMA

Folder name
File name

WMA (WMA tag)

Album name
Title name/artist name

Displayable characters

• Displayable length of file name/folder name: within

32 characters. (Unicoded file and folder names
are reduced by half in the number of displayable
characters.)

• Name files and folders in accordance with the standard

of each file system. Refer to the instructions of writing
software for details.

• ASCII character set and special characters in each

language can be displayed.

• Some Cyrillic characters in the Unicode can be

displayed.

ASCII character set
A to Z, a to z, digits 0 to 9, and the following symbols:
(space) ! ” # $ % & ’ ( ) * + , - . / : ; < = > ? @ [ \ ] ˆ _
` { | } ~

Special Characters
А Б В Г Е а б в г е
Д д
Т У Ф Х Ц т у ф х ц
Щ Ъ Ы Ь щ ъ ы ь

Notes:
• With some software in which MP3/WMA format files

have been encoded, the character information may not
be displayed properly.

• Undisplayable characters and symbols will be

converted into an asterisk ( ).

• It is recommended that the length of the file name is

less than 8 (excluding the file extension).

Caution

Never assign the “.mp3”, or “.wma” file
name extension to a file that is not in
the MP3/WMA format. This may not only
produce noise from the speaker damage,
but also damage your hearing.

Notes on MP3/WMA

Windows Media, and the Windows
logo are trademarks, or registered
trademarks of Microsoft Corporation
in the United States and/or other
countries/regions.

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