Toyota 2011 Matrix Owner's Manual page 238

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USB memory functions
Depending on the USB memory that is connected to the system, certain
functions may not be available. Disconnecting the device and reconnecting it
once again may resolve some malfunctions.
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Error messages
"USB ERROR": This indicates a problem either in the USB memory or
"NO SUPPORT": This indicates that no MP3/WMA files are included in the
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USB memory
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Compatible device
USB memory that can be used for MP3 and WMA playback.
Depending on the type of USB device, playback may not be possible.
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Compatible device formats
The following device formats can be used:
• USB communication formats: USB2.0 FS (12 mbps)
• File formats: FAT16/32 (Windows)
• Correspondence class: Mass storage class
MP3 and WMA files written in any format other than those listed above
may not play correctly, and their file names and folder names may not
be displayed correctly.
Items related to standards and limitations are as follows:
• Maximum directory hierarchy: 8 levels
• Maximum number of folder in device: 999 (including the root)
• Maximum number of files in device: 65025
• Maximum number of files per folder: 255
inside the USB box or connection between them.
USB memory.
3-2. Using the audio system
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