REFERENCE[CD/MD]
id0903e6830000
• 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:
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― 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)
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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).
MP3-Formatted File
Outline of CD-R and CD-RW
• Definition
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― 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
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― Record the audio data in the audio-CD by audio recorder
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• 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
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• The data-CD is cheaper than the audio-CD. But, there are lower quality CDs.
• Classification by audio data extraction/compression
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― Extracted audio data
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• The CD-R/RW player can play the extracted audio data.
― Compressed audio data
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• 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:
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• 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:
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Media
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Applicable to the CD-R/RW
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Logical format
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ISO 9660 level 1&2 / Joliet / Romeo
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Directory hierarchy
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To 8 levels
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Number of files
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Maximum 255 as the total number of files and folders
Maximum of 155 for folders
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ID3 TAG
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Applicable to Ver1.1, 2.3 and 2.4
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File extension
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MP3
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Packet writing
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Not applicable
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Bit rate
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8kbps—320kbps/VBR
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Sampling rate
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11.025kHz—48kHz
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