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CQ-VD7003U
English
Notes on MP3/WMA
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 (This figure refers 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).
Note:
¡MP3/WMA encoding and CD writing software programs are
not supplied with this unit.
Points to remember when making MP3/WMA files
Common
¡High bit rate and high sampling frequency are recommend-
ed for high quality sound.
¡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 encod-
ing 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 protection on the WMA file to enable
this unit to play back.
Display Information
Displayed items
Displayable characters
¡Displayable length of file name/folder name: within 128
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 soft-
ware 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 _ ` {
| } ~
Note:
¡With some software in which MP3/WMA format files have
been encoded, the character information may not be dis-
played 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).
¡CD-TEXT
Disc title
Track title
¡MP3/WMA
Folder name
File name
¡MP3 (ID3 tag)
Album name
Title and artist name
¡WMA (WMA tag)
Album name
Title and artist name
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.