JVC KD-G807: MP3/WMA INTRODUCTION

MP3/WMA INTRODUCTION

What are MP3/WMA?

How are MP3/WMA files

recorded and played back?

MP3 is an abbreviation of Motion Picture Experts

Group (or MPEG) Audio Layer 3. MP3 is simply a

MP3/WMA “files (tracks)” can be recorded in

file format with a data compression ratio of 1:10

ENGLISH

“folders”—in PC terminology.

(128 Kbps*).

During recording, the files and folders can be

arranged in a way similar to arranging files and

®

WMA (Windows Media

Audio) is the digital

folders of computer data.

audio compression format developed by

“Root” is similar to the root of a tree. Every file

Microsoft Corporation.

and folder can be linked to and be accessed from

the root.

* Bit rate is the average number of bits that one

second of audio data will consume. The unit used is

The illustration below shows an example of how

Kbps. To get a better audio quality, choose a higher

MP3/WMA files are recorded on a CD-R or

bit rate. The most popular bit rate for encoding is

CD-RW, how they are played back, and how they

128 Kbps.

are searched for on this unit.

• For details information about the MP3/WMA

Notes:

discs, refer to “A Guide to MP3/WMA”

• This unit cannot read or play an MP3 file without

(separate volume).

the extension code <.mp3> and a WMA track

without the extension code <.wma>.

Compatible with ID3 Tag

• This unit is not compatible with MP3 files encoded

with Layer 1 and Layer 2 formats.

Extra information data such as album title,

• This unit is not compatible with WMA files which

performer name, song title, recording year, music

®

are not based upon Windows Media

Audio.

genre and a brief comment can be stored within

• This unit is not compatible with Playlist**.

an MP3/WMA file.

**A playlist is a simple text file, used on a PC, which

This unit can show both ID3v1 (Version 1) and

enables users to make their own playback order

ID3v2 (Version 2) tags on the display. (See page

without physically rearranging the files.

27.)

• Some characters cannot be shown correctly.

• If both ID3v1 and ID3v2 are recorded on a

disc, ID3v2 information will be shown.

Hierarchy

Level 1 Level 2 Level 3 Level 4 Level 5

6

01

02 03

ROOT

7

3

4

05

10

5

: Folder and their playback

01

order

11

1

04

8

: MP3/WMA files and their

2

12

1

9

playback order

• Microsoft and Windows Media are either registered trademarks or trademarks of Microsoft Corporation in the

United States and/or other countries.

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