Radio, Stereo, and Compact Disc: Description and Operation

REFERENCE [CD PLAYER/CHANGER]

- The CD player/changer has been designed to play CDs bearing the identification logo, COMPACT DISC DIGITAL AUDIO, as shown. No other discs can be played on the CD player/changer other than MP3/WMA applicable one.





- The CD player/changer may not play the following CD:

- Defective CD (e.g., cracked, badly bent, rough edges, scratch, dirty CD condensation)
- 8 cm (3 in) CDs accessories (e.g., 8 cm (3 in) disc adapter, sticker, label)
- Nonstandard CD (e.g., Diameter/thickness is out of specification)

- Specification: 119.7-120.3 mm (4.668-4.692 in) of diameter, 1.2+0.3 or -0.1 mm (0.047+0.012 or 0.004 in) of thickness
- Do not use non-conventional discs. The CD player/changer could be damaged.
Examples:





- Although the same physical size as the compact disc, SACD uses a different kind of digital audio signal, Direct Stream Digital.
- The CD player/changer may not play the CD-R/RW properly due to the disc condition (excluding the MP3/WMA).

MP3/WMA-Formatted File

Outline of CD-R and CD-RW
- Definition

- CD-R: The CD-R is a non-rewritable version. Once a section of a CD-R is written, it cannot be erased or rewritten.
- CD-RW: The CD-RW is a re-writable version of CD-ROM and can be written the data an unlimited number of times.
- Since a reflected laser beam amount of the CD-R/RW is less than the reflected laser beam amount of the conventional CD media, the CD player/changer may not play the CD-R/RW or have the sound jumped.
- Since the recording quality of the CD-R/RW vary widely, some CD-R/RW may not be played.

Recording method
- There are two methods for recording.
- Classification by recorder

- Record the audio data in the audio-CD by audio recorder

- The price of the audio recorder and original audio-CD includes the copyright fee.
- Recorded the audio data in the conventional data-CD by the personal computer

- The data-CD is cheaper than the audio-CD. But, there is a CD with the low quality.
- Classification by audio data uncompression/compression

- Uncompressed audio data

- The CD-R/RW player can play the uncompressed audio data.
- Compressed audio data

- It is possible to record the large quantity of music in a disc. The sound quality varies depends on the audio data compression format. The compressed audio data can be played on the applicable player only.
- Type of compression format:

- MP3: MPEG Audio Layer 3 - Mazda genie MP3 applicable CD player is available.
- WMA: Windows Media Audio
- ATRAG: Adaptive TRansform Acoustic Coding

MP3
- The following condition should be met in order to record the MP3-formatted data on the MP3 applicable CD player:





WMA
- CD-R and CD-RW including WMA files can be played with this unit. Discs which conform to the following formats can be played.
Playable WMA files are as follows: