3435-5. Playing an audio CD and MP3/WMA/AAC discs
5
Multimedia
■Discs that can be used
Discs with the marks shown below can be used. 
Playback  may  not  be  possible  depending  on  recording  format  or  d isc  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 s topped when a
problem is detected.
■ If  a  disc  is  left  inside  the  CD  player  or  in  the  ejected  positi on  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 form at.
This  product  is  protected  by  certain  intellectual  property  rights  of  Microsoft
Corporation  and  third  parties.  Use  or  distribution  of  such  technology  outside
of this product is prohibited without a license from Microsoft  or an authorized
Microsoft subsidiary and third parties. 
This format compresses audio data to a size smaller than that o f the MP3 for-
mat.
AAC is short for Advanced Audio Coding and refers to an audio c ompression
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  a nd  mon-
aural