2415-4. Playing audio CDs and MP3/WMA discs
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Audio system
Discs that can be used
Discs with the marks shown below can be used.
Playback may not be possible depending on recording format or disc fea-
tures, or due to scratches, dirt or deterioration.
CDs with copy-protect features may not be used.
CD player protection feature
To protect the internal components, playback is automatically stopped when a
problem is detected while the CD player is being used.
If a disc is left inside the CD player or in the ejected position for
extended periods
The disc may be damaged and may not play properly.
Lens cleaners
Do not use lens cleaners. Doing so may damage the CD player.
MP3 and WMA files
MP3 (MPEG Audio LAYER3) is a Microsoft audio compression format.
Files can be compressed to approximately 1/10 of their original size by using
MP3 compression.
WMA (Windows Media Audio) is a Microsoft audio compression format.
This format compresses audio data to a size smaller than that of the MP3 for-
mat.
There is a limit to the MP3 and WMA file standards and to the media/formats
recorded by them that can be used.
MP3 file compatibility
• Compatible standards
MP3 (MPEG1 LAYER3, MPEG2 LSF LAYER3)
• Compatible sampling frequencies
MPEG1 LAYER3: 32, 44.1, 48 (kHz)
MPEG2 LSF LAYER3: 16, 22.05, 24 (kHz)
• Compatible bit rates (compatible with VBR)
MPEG1 LAYER3: 64, 80, 96, 112, 128, 160, 192, 224, 256, 320 (kbps)
MPEG2 LSF LAYER3: 64, 80, 96, 112, 128, 144, 160 (kbps)
• Compatible channel modes: stereo, joint stereo, dual channel and mon-
aural
