About AAC, MP3, WMA, WAV and FLAC

The playable AAC/MP3/WMA/WAV/FLAC file (hereafter called Audio file) and the media format has the following limitation. The Audio file, which is not conforming to the specification, may not play normally, or the file and folder names may not display correctly.

Playable Audio file

MP3	Extension		.mp3
	Format		MPEG 1/2 Audio Layer 3 file
	Transfer bit rate		8-320 kbps / Variable Bit Rate
	Sampling frequency		8/ 11.025/ 12/ 16/ 22.05/ 24/ 32/ 44.1/ 48 kHz
	Joint STEREO
	ID3 Tag (Ver.1)		Ver1.0/ 1.1 (Title/ Artist/ Album)
	ID3 Tag (Ver.2)		Ver2.2/ 2.3/ 2.4 (Title/ Artist/ Album)
WMA	Extension		.wma
	Format		The file in accordance with Windows Media Audio (Except for the file for Windows Media Player 9 or after which applies the new functions)
	Transfer bit rate		8-320 kbps / Variable Bit Rate
	Sampling frequency		16/ 22.05/ 32/ 44.1/ 48 kHz
	DRM file		—
	Professional		—
	Lossless		—
	Voice		—
	WMA Tag (Content Description)		(Title/ Artist)
	WMA Tag (Extended Content Description)		(WM/Album Title)
AAC-LC	Extension		.m4a
	Format		".m4a" file encoded by AAC-LC format.
	Transfer bit rate		8-320 kbps
	Sampling frequency		16/ 22.05/ 24/ 32/ 44.1/ 48 kHz
	DRM file		—
	2 channel
	Multi channel		—
	ID3 Tag (Ver.2)		—
	iTunes m4a Meta-data (Song Info.)		(Title/ Artist/ Album)
WAV	Extension		.wav
	Format		RIFF waveform Audio Format (only for LinearPCM)
	Sampling frequency	Disc media	16/ 22.05/ 24/ 32/ 44.1/ 48 kHz
		USB device/ SD card	16/ 22.05/ 24/ 32/ 44.1/ 48/ 192 kHz
	Bit count		16/ 24 bit
	Channel		Stereo/Monaural
FLAC	Extension		.flac, .ogg
	Format		Free Lossless Audio Codec (FLAC)
	Sampling frequency	Disc media	16/ 22.05/ 24/ 32/ 44.1/ 48 kHz
		USB device/ SD card	16/ 22.05/ 24/ 32/ 44.1/ 48/ 192 kHz (flac) 16/ 22.05/ 24/ 32/ 44.1/ 48 kHz (ogg)
	Channel		Stereo/Monaural
	Bit count		16/ 24 bit (flac) 16 bit (ogg)

・Do not attach the extensions to files other than the Audio file. If the extension is attached, the file, which is not the Audio file, will play and outputs a loud noise, causing damage to the speaker.

・The files with copy protection cannot be played.

・Audio files cannot be played depending on the encoding software setting, USB device type, and/or recording conditions.

・The unit may not be compatible with upgrade of compression format standard and additional specifications.

・There are times when play time is not displayed correctly depending on the Audio file recording conditions.

・Sound of WAVE file may be interrupted depending on the performance of the recording media.

Playable storage media file system

Disc media (DVD±R/RW CD-R/RW)	File system (Windows)	ISO 9660 Level 1/2
		ISO 9660 Level 3	—
		Romeo
		Joliet
		Long File Name
	File system (Macintosh)		—
	File system (UNIX)		—
	Multi-Session		*1
USB device/ SD card	File system (Windows) *2	FAT16
		FAT32
		NTFS
	File system (Macintosh)		—
	File system (UNIX)		—

・CD-RW discs which are quick formatted by the writing software cannot be used.

・When recording to the maximum CD-R/RW media capacity at once, the writing software is set to "Disc at once".

・Joliet is recommended for file system of CD-R/RW. With other file systems, the display may not be shown correctly depending on the operating conditions.

・*1 For CD-DA/ audio file mixed disc, the unit plays only the playback system recorded at the first setout.

・*2 Multi Partition : Not compatible (Some USB devices may have multiple partitions that will be invisible on Windows OS.)

・When the CD-R/RW recorded by CD-ROM MODE 2 (XA) format cannot be played, please record again by using CD-ROM MODE 1 writing format.

Limitation of structure for the file and the folder

Disc media (DVD±R/RW CD-R/RW)	Maximum number of files per folder	999
	Maximum number of files (per device)	50000
USB device/ SD card	Maximum number of files (per folder)	999

・It may take time to start playing depending on the recording conditions such as file hierarchy and folder structure.

・This includes the Root folder (the folder in the top level). The number of folders shown on your PC is less than it by 1.

The maximum number of characters for display

File/Folder name		255 characters
MP3 ID3 Tag	Ver. 1.x	30 characters
	Ver. 2.x	255 characters
WMA Contents property		255 characters
AAC song information		255 characters

・MAX File Path：255 characters

・Number of characters is based on byte unit.

・File/Folder name is the number of the characters including the extensions.

・This unit can display the following versions of MP3 ID3 tag: version 1.0/ 1.1/ 2.2/ 2.3/ 2.4.

・AAC ID3 Tag cannot be displayed.

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Acceptable video files

MPEG-1	Extension		.mpg, .mpeg
	Format		MPEG-1
	Picture size		320 × 240, 320 × 288
	Video bit rate		Max. 1.5 Mbps
	Audio format		MPEG1 Audio Layer-2
	Audio sampling frequencies		32/ 44.1/ 48 kHz
	Audio bit rate		32–384 kbps / VBR
MPEG-2	Extension		.mpg, .mpeg
	Format		MPEG-2
	Profile & Level		MP@ML (Main Profile at Main Level)
	Picture size		720 × 480, 720 × 576
	Video bit rate		Max. 8.0 Mbps
	Audio format		MPEG1 Audio Layer 2
	Audio sampling frequencies		32/ 44.1/ 48 kHz
	Audio bit rate		32–384 kbps / VBR
H.264/ MPEG4 AVC	Extension		.mp4, .m4v, .avi, .flv, .f4v
	Format		H.264/ MPEG4 AVC
	Picture size		Max. 1280 × 720 / 30 fps
	Video bit rate		Max. 8.0 Mbps
	Audio format		MP3, AAC
	Audio sampling frequencies		16/ 22.05/ 24/ 32/ 44.1/ 48 kHz
	Audio bit rate		8-320 kbps / VBR
MPEG-4	Extension		.mp4, .avi
	Picture size		Max. 1920 × 1080 / 30 fps
	Video bit rate		Max. 8.0 Mbps
	Audio format		mp3, AAC
	Audio sampling frequencies		16/ 22.05/ 24/ 32/ 44.1/ 48 kHz
	Audio bit rate		8-320 kbps / VBR
WMV	Extension		.wmv
	Format		Windows Media Video 9
	Picture size		Max. 1920 × 1080 / 30 fps
	Video bit rate		Max. 8.0 Mbps
	Audio format		WMA
	Audio sampling frequencies		16/ 22.05/ 24/ 32/ 44.1/ 48 kHz
	Audio bit rate		8-320 kbps / VBR
Matroska	Extension		.mkv
	Video format		H.264/ MPEG4 AVC, MPEG-4, WMV
	Audio format		MP3, AAC, WMA, Vorbis, FLAC

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Notes on Use of the USB device

This unit can play audio files stored in the flash memory and digital audio player that have a USB port (these devices are referred to as USB devices in this document).
The following restrictions are placed on the types and usage of available USB devices:

Available USB Devices

USB standard	USB 2.0 High Speed
Transfer Speed	Max. 480 Mbps
USB class	Mass storage class (MSC device)
USB subclass	SCSI
Protocol	Bulk Only
Current supply	Max. 1.5 A

・USB Mass Storage Class:
USB devices that the PC can recognize as an external storage without using any special driver or application software.

・Contact the sales agent as to whether your USB device conforms to the USB mass storage class specs.

・Using an unsupported USB device can result in abnormal playback or display of the audio/video file.
Even if you use the USB device conforming to the above specs, audio/video files cannot be played normally depending on the type or condition of the USB device.

・Some of the functions is are limited with a certain USB device.

・Normal operation and power supply is not guaranteed against every USB devices.

About the Connection of the USB device

・When connecting the USB device, usage of the CA-U1EX (500 mA Max: option) is recommended.

・Normal playback is not guaranteed when a cable other than the USB compatible cable is used. Connecting a cable whose total length is longer than 5 m can result in abnormal playback.

・You cannot connect a USB device via a USB hub.

・Install the USB device in the place where it will not prevent you from driving your vehicle properly. ・Do not leave the USB device in the vehicle for a long time. It can deform or damage due to direct sunlight, high temperature, etc. ・Take backups of the audio/video files used with this unit. The files can be erased depending on the operating conditions of the USB device. We shall have no compensation for any damage arising out of erasure of the stored data. ・Leave the cap on when not using an USB device.

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Available SD card

Compatible SD card	SD card, SDHC card, miniSD card, miniSDHC card, microSD card, microSDHC card
Data Transfer Rate	Max. 20 MB/s
Capacity	Max. 32 GB

・This unit is capable of playback of SD/SDHC memory cards complying with the SD or SDHC standard.

・A special adapter is required to use a miniSD card, miniSDHC card, microSD card or microSDHC card.

・The MultiMedia Card (MMC) cannot be used.

・Data recorded in the SD audio format cannot be played back.

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