Reference [CD Player/Changer]

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 applicable one.
- The CD player/changer may not play the following CD:
- Defective CD (e.g., cracked, badly bent, rough edges, scratched, dirty, 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: 11 9.7-120.3 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).

MP3-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 the data can be written an unlimited number of times.
- Since the reflected laser beam amount of a 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 the sound may jump.
- Since the recording quality of the CD-R/RWs vary widely, some CD-R/RWs may not play.

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 include the copyright fee.

- Record the audio data to a conventional data-CD using a personal computer
- The data-CD is cheaper than the audio-CD. But, there are lower quality CDs.

- Classification by audio data extraction/compression
- Extracted audio data
- The CD-R/RW player can play the extracted audio data.

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

- Types of compression format:
- MP3: MPEG Audio Layer 3 - Mazda genuine MP3 applicable CD player is available.
- WMA: Windows Media Audio
- ATRAG: Adaptive Transform Acoustic Coding

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