Lexus RX450H Manual page 389

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
unnecessary folders.
Discs that contain a mixture of music data and MP3 or WMA format data
cannot 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 pos-
sible at all.
• When files other than MP3 or WMA files are recorded on a disc, it
may take more time to recognize the disc and in some cases, playback
may not be possible at all.
• Microsoft, Windows, and Windows Media are registered trademarks
of Microsoft Corporation in the U.S.A. and other countries.
NOTICE

CDs and adapters that cannot be used
P. 356

CD player precautions
P. 357
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