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Operation
Format of discs
The format of discs to be used must be ISO9660 Level 1 or Level 2.
Control items for this standard are as follows:
• Maximum directory layers: 8 layers
• Maximum characters for folder names/file names:
128 (including “.” and 3 letter file extension)
• Allowable characters for folder names/file names:
A~Z, 0~9, _ (underscore)
• Number of files possible on a single disc:
512
• Maximum folders this main unit can recognize:
512*
*: A root directory is counted as one folder.
File names
Only files with the MP3/WMA/AAC file extension “.mp3”, “.wma” , “.m4a” can be recognized as MP3/
WMA/AAC and played. Be sure to save MP3 files with the “.mp3” file extension. Be sure to WMA
files with the “.wma” file extension. Be sure to save AAC files with the “.m4a” file extension. The
“MP” letters of the file extension will be recognized whether entered as uppercase letters or
lowercase letters.
CAUTION
1
2
If the “.mp3”, “.wma”, “.m4a” file extension is attached to a file other than an MP3/WMA/AAC file,
that file will be mistakenly recognized by the main unit as an MP3/WMA/AAC file and played,
resulting in loud noise output that can damage the speakers. Be sure to avoid attaching the “.mp3”,
“.wma”, “.m4a” file extension to files that are not MP3/WMA/AAC files.
F2
Root directory (F1)
F158
Folder 2
Folder 158
Folder 159
F255
Folder 255
001.mp3
002.mp3
003.mp3
004.txt
005.mp3
001.mp3
002.mp3
F159
[Configuration example for CD supporting MP3/WMA/AAC]
Number of files possible on a single disc is 512. Files aside from MP3/WMA/AAC
files (Example: 004.txt) also count as single files.