Toyota TNS400 Owner's Manual page 31

Media
The media capable of playing MP/WMA include CD-R and CD-RW discs. Compared to the
CD-ROM media commonly used for music discs, CD-R and CD-RW discs are fragile in high
temperature/high humidity environments and one section of the CD-R and CD-RW may become
incapable of playback. Fingerprints or scratches on the disc may prevent playback or cause
skipping during playback. Sections of a CD-R or CD-RW may deteriorate if left inside a vehicle for
long periods of time. It is also advisable that CD-R and CD-RW discs be kept in a light-blocking
case because the discs are vulnerable to ultra-violet light.
Format of discs
The format of discs to be used must be ISO9660 Level  or Level . The control items for this
standard are as follows:
• Maximum directory layers: 8 layers
• Maximum characters for folder names/file names:  (including "." and  letter file extension)
• Allowable characters for folder names/file names: A~Z, 0~9, _ (underscore)
• Maximum number of files on a single disc: 56
[Configuration example for CD supporting MP/WMA]
Root directory (F) Root directory (F1)
Folder 
F F2 Folder 2
00.mp
001.mp3
00.mp
002.mp3
00.mp
003.mp3
004.txt
004.txt
005.mp
005.mp3
Folder 58
F58 Folder 158
F158
Folder 59 Folder 159
F59 F159
001.mp3
00.mp
00.mp 002.mp3
F9 Folder 192 Folder 9
F192
• Maximum folders this main unit can recognize: 9*
* :A root directory is counted as one folder.
File names
Only files with the MP/WMA file extension ".mp" / ".wma" can be recognized as MP/WMA
and played. Be sure to save MP files with the ".mp" file extension. Be sure to save WMA files
with the ".wma" file extension. The "MP" letters of the file extension will be recognized whether
entered in upper case or lower case.
Caution: If the ".mp" / ".wma" file extension is attached to a file other than an MP/WMA
file, that file will be mistakenly recognized by the main unit as an MP/WMA file and played,
resulting in loud noise output that can damage the speakers. Be sure to avoid attaching the
".mp", ".wma" file extension to files that are not MP/WMA files.
0 TNS400
Number of files possible on a single disc is 56.
Files aside from MP/WMA files
(Example: 004.txt) also count as single files.