Lexus 2013 IS250 Owner's Manual page 343

330
5-6. Using an external device

File names
The only files that can be recognized as MP3/WMA/AAC and played are those
with the extension .mp3, .wma or .m4a.

ID3, WMA and AAC tags
ID3 tags can be added to MP3 files, making it possible to record the track title,
artist name, etc.
The system is compatible with ID3 Ver. 1.0, 1.1, and Ver. 2.2, 2.3 ID3 tags.
(The number of characters is based on ID3 Ver. 1.0 and 1.1.)
WMA tags can be added to WMA files, making it possible to record the track
title and artist name in the same way as with ID3 tags.
AAC tags can be added to AAC files, making it possible to record the track
title and artist name in the same way as with ID3 tags.

MP3, WMA and AAC playback
• When a device containing MP3, WMA or AAC files is connected, all files in
the USB memory device are checked. Once the file check is finished, the
first MP3, WMA or AAC file is played. To make the file check finish more
quickly, we recommend that you do not include any files other than MP3,
WMA or AAC files or create any unnecessary folders.
• When a USB memory device is connected and the audio source is changed
to USB memory mode, the USB memory device will start playing the first
file in the first folder. If the same device is removed and reconnected (and
the contents have not been changed), the USB memory device will resume
play from the same point in which it was last used.

Extensions
If the file extensions .mp3, .wma and .m4a are used for files other than MP3,
WMA and AAC files, they will be skipped (not played).

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.
• There is a wide variety of freeware and other encoding software for MP3,
WMA and AAC 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 play-
back may result. In some cases, playback may not be possible at all.
• Microsoft, Windows, and Windows Media are the registered trademarks of
Microsoft Corporation in the U.S.A. and other countries.
IS250_EE(OM53B11E)