CD / MP3 / WMA Operations

What is MP3?

MP3 is an audio compression method and is classified as audio layer 3 of the MPEG standard.

This audio compression method has gained ground into PC users and Become a standard format.

This MP3 features original audio data compression to about 10 percent of its initial size while keeping high sound quality intact. 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 stored trademarks of Microsoft Corporation in the United States and/or other countries.

●To disable DRM (Digital Rights Management):

•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.

•When using Windows Media Player 9, click on TOOLS ➜ OPTIONS ➜ MUSIC record tab, then under COPY SETTINGS, unclick the check box for PROTECT CONTENT. Then, reconstruct files.

Personally constructed WMA files are used at your own responsibility.

Precautions when creating an MP3/WMA disc

●Usable sampling rates and bit rates:

1.MP3:

Sampling rate: 11.025 kHz to 48 kHz

Bit rate: 8 kbps to 320 kbps / VBR

2.WMA:

Bit rate 48 kbps to 192 kbps

●File extensions

1.Always add a file extension “.MP3” or

“.WMA” to an 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 playing time display if you attempt to play files without MP3/WMA data.

●Logical format (File system)

1.When writing an 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 in the case of MP3/ WMA play but the title must be within 128 single byte alphabetical letters and numerals (including an extension).

3.Do not give 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 is not allowed.

●Number of files or folders

1.Up to 255 files can be recognized per folder. Up to 500 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.

English

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