2705-5. Playing an audio CD and MP3/WMA/AAC discs
■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-protection features may not play correctly.
■ CD player protection feature
To protect the internal components, playback is automatically stopped when a
problem is detected.
■ If a disc is left inside the CD pl ayer or in the ejected position for
extended periods
Disc may be damaged and may not play properly.
■ Lens cleaners
Do not use lens cleaners. Doing so may damage the CD player.
■ MP3, WMA and AAC files
MP3 (MPEG Audio LAYER3) is a standard 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.
AAC is short for Advanced Audio Coding and refers to an audio compression
technology standard used with MPEG2 and MPEG4.
MP3, WMA and AAC file and media/formats compatibility are limited.
● 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: 32-320 (kbps)
MPEG2 LSF LAYER3: 8-160 (kbps)
• Compatible channel modes: stereo, joint stereo, dual channel and mon- aural
