Kenwood XXV-01D - Manual (Page 7)

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About AAC, MP3 and WMA
The playable AAC/MP3/WMA file (hereafter called
Audio file) and the media format has the following
limitation. The Audio file, which is not comforming
to the specification, may not play normally, or the
file and folder names may not display correctly.
• Attach the correct extension for the Audio file (AAC:
".M4A", MP3: ".MP3", WMA: ".WMA")
• 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.
Playable AAC file
• ".m4a" file encoded by AAC-LC format.
Refer to http://www.kenwood.mediamanager.jp
for the details.
Playable MP3 file
• MPEG 1/2 Audio Layer 3 file
• Transfer bit rate: 8-320 kbps
• Sampling frequency
: 16, 22.05, 24, 32, 44.1, 48 kHz
Playable WMA file
• 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: 48-192 kbps
• Sampling frequency: 32, 44.1, 48 kHz
Playable media
• CD-ROM, CD-R, CD-RW
• CD-RW discs which are quick formatted by the writing
software cannot be used.
• When recording to the maximum media capacity at
once, the writing software is set to "Disc at once".
Playable disc format
• ISO 9660 Level 1/2
• Joliet
• Romeo
• Long file name.
The maximum number of characters for
display
File/Folder name: 128 characters
MP3 ID3 Tag/ WMA Contents property
: 30 characters
AAC song information: 60 characters
• File/Folder name is the number of the characters
including the extensions
• AAC ID3 Tag cannot be displayed.
Limitation of structure for the file and the
folder
• Maximum number of directory levels: 8
• Maximum number of folders: 100
• Maximum number of files per folder: 4096
Playing order of the Audio file
The Audio file plays in the order which is written by
writing software. You may be able to set the playing
order by writing the play sequence numbers such
as "01" to "99" at the beginning of the file name.
Example
CD
¡!
¡"
2
(1) 0 : Folder
¡ : Audio file
3
¡%
4
¡#
¡$
Folder
Audio file
• Playing order
Playing order after ¡! play.
➡ ¡", ¡#, ¡$, ¡%...
• File search
Forward file search during ¡# play.
Push the Control knob toward [ ¢] ➡ ¡$
• Folder search
Forward folder search during ¡" play.
Push the Control knob toward [FM] ➡ 3, 4...
• Folder select
When the selection is set to directory 4, and you
want to skip to the folder 2 at the same level.
Push the Control knob towards [ 4] ➡ 2
When the selection is set to directory 3, moves
the level up by folder select.
Push the Control knob towards [FM] ➡ 2