Cd/mp3/wma operations, English 20, Mp3/wma – Clarion DXZ378RMP User Manual

Page 20

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English

20

DXZ378RMP/DXZ379RMP

CD/MP3/WMA Operations

MP3/WMA

What is MP3?

MP3 is an audio compression method and
classified into audio layer 3 of MPEG standards.
This audio compression method has penetrated
into PC users and become a standard format.

This MP3 features the original audio data
compression to about 10 percent of its initial
size with a high sound quality. This means that
about 10 music CDs can be recorded on a CD-
R disc or CD-RW disc to allow a long listening
time without having to change CDs.

What is WMA?

WMA is the abbreviation of Windows Media
Audio, an audio file format developed by
Microsoft Corporation.

Notes:

• If you play a file with DRM (Digital Rights

Management) for WMA remaining ON, no audio
is output (The WMA indicator blinks).

• Windows Media™, and the Windows ® logo are

trademarks, or registered trademarks of Microsoft
Corporation in the United States and/or other
countries.

To disable DRM (Digital Rights
Management)

1. When using Windows Media Player 8, click

on TOOLS

OPTIONS

COPY MUSIC

tab, then under COPY SETTINGS, unclick
the check box for PROTECT CONTENT.
Then, reconstruct files.

2. When using Windows Media Player 9, click

on TOOL

OPTIONS

MUSIC RECORD

tab, then under Recording settings, unclick
the Check box for RECORD PROTECTED
MUSIC. Then, reconstruct files.

Personally constructed WMA files are used
at your own responsibility.

Precautions when creating MP3/
WMA disc

Usable sampling rates and bit rates

1. MP3: Sampling rate 8 kHz-48 kHz,

Bit rate 8 kbps-320 kbps / VBR

2. WMA: Bit rate 48 kbps-192 kbps

File extensions

1. Always add a file extension “

.MP3

” or

.WMA

” to MP3 or WMA file by using single

byte letters. If you add a file extension other
than specified or forget to add the file
extension, the file cannot be played.

2. Files without MP3/WMA data will not play.

The indication “

– –:– –

” appears in the play

time display if you attempt to play files
without MP3/WMA data.

Logical format (File system)

1. When writing MP3/WMA file on a CD-R disc

or CD-RW disc, please select “ISO9660 level
1, 2 or JOLIET or Romeo” as the writing
software format. Normal play may not be
possible if the disc is recorded on another
format.

2. The folder name and file name can be

displayed as the title during MP3/WMA play
but the title must be within 64 single byte
alphabetical letters and numerals (including
an extension).

3. Do not affix a name to a file inside a folder

having the same name.

Folder structure

1. A disc with a folder having more than 8

hierarchical levels will be impossible.

Number of files or folders

1. Up to 255 files can be recognized per folder.

Up to 510 files can be played.

2. Tracks are played in the order that they were

recorded onto a disc. (Tracks might not
always be played in the order displayed on
the PC.)

3. Some noise may occur depending on the

type of encoder software used while
recording.

DXZ378RMP_EN.book 20 ページ 2006年11月27日 月曜日 午後2時22分

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