JVC VS-DT68V, VS-DT88V Using the CD Player, MP3 Introduction, What is MP3?, MP3 disc structure

English

Using the CD Player

PREV. NEXT Panel

Number buttons

PREV.

CD SELECT REPEAT

PLAY

MODE

STANDBY/ON

1	2	3
4	5	6	FM/AM
			MD/AUX
7	8	9		SOURCE PREV.	SELECT NEXT RETURN	VOL
10		+10		+10
MPX			CANCEL
VCD No.			VCD No.
	SET
PBC			ON
			SCREEN
AHB PRO	BASS	TREBLE		SET	SELECT
PREV.	CD SELECT		NEXT	NEXT
VIDEO	HIGH
INTRO	LIGHT	RETURN	STILL	Track number, Playing time, Preset number
REPEAT	/TIMER	DIMMER	SLEEP
	CLOCK

PLAY FM

MODE MODE

OPEN

COLOR DISPLAY /CLOSE

VOLUME	OPEN
	/CLOSE

PROGRAM RANDOM ALL

Play mode indicators Repeat indicators

*When the System is in use, the display shows other items as well. For simplicity, we show here only the items described in this section.

You can use Normal, Random, Program or Repeat play. Repeat Play can repeat all the tracks or just one of the tracks on the CD.

Here are the basic things you need to know to play a CD and locate the different tracks on it.

This unit has been designed to play back the following CDs:

•CD

•CD-R

•CD-RW

•MP3 discs (MP3 files recorded on a CD-R or CD-RW)

When playing a CD-R or CD-RW

You can play back finalized CD-Ror CD-RWrecord- ed in Music CD format or recorded in MP3 format.

■You can play back CD-R or CD-RW like CD.

■Some CD-R or CD-RW may not be played back on this unit because of their disc characteristics, damage or stain on them, or if the player lens is dirty.

■The reflection factor of CD-RW is lower than that of other CD, possibly causing CD-RW to take longer to read.

■When both audio CD format tracks and MP3 files are recorded on a CD-R or CD-RW, this unit plays back only one of them which is recognised first.

MP3 Introduction

What is MP3?

MP3 is an abbreviation of Motion Picture Experts Group 1 (or MPEG-1) Audio Layer 3. MP3 is simply a file format with a data compression ratio of 1:10 (128 kbps*). By using MP3 format, one CD-R or CD-RW can contain 10 times as much data volume as a regular CD can.

*Bit rate is the average number of bits that one second of audio data will consume. The unit used is kbps (1,000 bits per second). To get a better audio quality, choose a higher bit rate. The most popular bit rate for encoding (recording) is 128 kbps.

MP3 disc structure

On an MP3 disc, each song (material) is recorded as a file. Files are grouped into a directory (or folder). Directories can also include other directories, creating hierarchical directory layers. (See “How are MP3 files recorded and played back?” on page 18.)

This unit manages files and directories as “tracks” and

“groups”. This unit can recognise up to 255 tracks and up to 64 groups per disc. The unit ignores those exceeding the maximum numbers and cannot play them back.

•MP3 discs (either CD-R or CD-RW) require a longer readout time. (It differs due to the complexity of the group/ file configuration.)

•When making an MP3 disc, select ISO 9660 Level 1 or Level 2 as the disc format.

•This unit does not support multisession recording.

•This unit can play MP3 files only with the following file extensions — “.MP3”, “.Mp3”, “.mP3”, and “.mp3”.

•Files other than MP3 are ignored.

•Some MP3 discs may not be played back because of their disc characteristics or recording conditions.

17