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
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.