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3-2. Using the audio system
● MP3 and WMA playback
When a disc containing MP3 or WMA files is inserted, all files on the disc
are first checked. Once the file check is finished, the first MP3 or WMA file
is played. To make the file check finish more quickly, we recommend you
do not write in any files other than MP3 or WMA files or create any unnec-
essary folders.
If the discs contain a mixture of music data and MP3 or WMA format data,
only music data can be played.
● Extensions
If the file extensions .mp3 and .wma are used for files other than MP3 and
WMA files, they will be mistakenly recognized and played as MP3 and
WMA files. This may result in large amounts of interference and damage
to the speakers.
● Playback
•To play MP3 files with steady sound quality, we recommend a fixed bit
rate of at least 128 kbps and a sampling frequency of 44.1 kHz.
•CD-R or CD-RW playback may not be possible in some instances,
depending on the characteristics of the disc.
•There is a wide variety of freeware and other encoding software for
MP3 and WMA files on the market, and depending on the status of the
encoding and the file format, poor sound quality or noise at the start of
playback may result. In some cases, playback may not be possible at
all.
• When files other than MP3 or WMA files are recorded on a disc, it may
take more time to recognize the disc. In some cases, playback may not
be possible at all.
•Microsoft, Windows, and Windows Media are the registered trade-
marks of Microsoft Corporation in the U.S. and other countries.
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