About MP3, WMA and WAV

The playable MP3/WMA/WAV 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	32-320 kbps / Variable Bit Rate
	Sampling frequency	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	32-320 kbps / Variable Bit Rate
	Sampling frequency	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)
WAV	Extension	.wav
	Format	RIFF waveform Audio Format (only for LinearPCM)
	Sampling frequency	44.1 KHz
	Bit count	16 bit
	Channel	Stereo/Monaural

・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 output 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

・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.

・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 folders (per device)	250
	Maximum number of files per folder	999
	Maximum number of files (per device)	5000

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

The maximum number of characters for display

File/Folder name		25 characters
MP3 ID3 Tag	Ver.1.x	30 characters
	Ver.2.x	128 characters
WMA Contents property		64 characters
WAV Tag		128 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.

Playing order of the Audio file

・For disc media, audio files are played in the order which is written by writing software. For USB device, audio files are played in the order of file names. You can specify the playing order by numbering files such as "01" to "99" at the beginning of the file name.

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Acceptable video files

MPEG-1	Extension	.mpg, .mpeg
	Format	MPEG-1
	Picture size	352 × 240, 352 × 288
	Video bit rate	Max. 1.5 Mbps
	Audio format	MPEG Audio Layer 2
	Audio sampling frequencies	32/ 44.1/ 48 kHz
	Audio bit rate	32–320 kbps (Only constant bit rates)
MPEG-2	Extension	.mpg, .mpeg
	Format	MPEG-2
	Profile & Level	MP@ML, MP@LL, SP@ML
	Picture size	352 × 240, 352 × 480, 480 × 480, 720 × 480 352 × 288, 352 × 576, 480 × 576, 720 × 576
	Video bit rate	Max. 4.0 Mbps
	Audio format	MPEG Audio Layer 2, AC-3 (2 ch only)
	Audio sampling frequencies	32/ 44.1/ 48 kHz
	Audio bit rate	32–320 kbps (Only constant bit rates)
DivX	Extension	.divx, .div, .avi
	Format	DivX
	Picture size	320 x 240, 320 x 288, 720 x 480, 720 x 576
	Video bit rate	Max. 4.0 Mbps
	Audio format	MP3, Dolby Digital
	Audio sampling frequencies	16, 22.05, 24, 32, 44.1, 48 kHz
	Audio bit rate	32–320 kbps (Only constant bit rates)

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Acceptable picture files

Extension	.jpg, .jpeg
Format	JPEG
Baseline format	Up to a maximum of 8192(W) × 7680(H) pixels
Progressive format	—

・Enlarges and reduces images up to the size shown above to fit to the screen.

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