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About MP3/WMA/AAC
ATTENTION
The making of MP3/WMA/AAC files by recording from sources such as broadcasts, records,
recordings, videos and live performances without permission from the copyright holder for uses
other than personal enjoyment is prohibited.
What is MP3/WMA/AAC?
MP3 (MPEG Audio Layer III) is a standard format for audio compression technology. By using MP3
a file can be compressed to one-tenth the size of the original.
WMA (Windows Media
TM
Audio) and AAC (Advanced Audio Coding) are formats for audio
compression technology. WMA files can be compressed to a size smaller than MP3 files. AAC is
said to have a high rate of compression which is about 1.4 times that for MP3 files with the same
audio quality.
This main unit has limitations on MP3/WMA/AAC file standards and recorded media and formats
that can be used.
Playable MP3 file standards
• Supported standards:
MPEG-1 Audio Layer III, MPEG-2 Audio Layer III, MPEG-2.5 Audio Layer III
• Supported sampling frequencies:
8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48 (kHz)
• Supported bit rate:
8~320 (kbps)
* Supports VBR (8~320kbps)
* Does not support free format.
• Supported channel modes:
monaural, stereo, joint, dual
Playable WMA file standards
• Supported standards:
WMA Ver. 7 , WMA Ver. 8 , WMA Ver. 9
• Supported sampling frequencies:
8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48 (kHz)
• Supported bit rate:
3~320 (kbps)
* Supports VBR (3~320kbps).
* Does not support lossless compression.
• Do not use benzine, thinner, LP record spray or other cleaners on
CDs. They may damage a CD' s finish.
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