Mazda 2010 Mazda3 4-Door Owner's Manual page 242

Interior Comfort
Audio System
This unit handles MP3 files
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conforming to the MP3 format
containing both header frames and data
frames.
This unit can play multi-session
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recorded discs that have up to 40
sessions.
This unit can play MP3s with sampling
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frequencies of 16/22.05/24/32/44.1/48
kHz.
This unit can play MP3 files that have
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been recorded in bit rates of 8 kbps to
320 kbps. Nonetheless, to insure
enjoyment of music with consistent
sound quality, it is recommended to use
discs that have been recorded at a bit
rate of 128 kbps or more.
If a disc has both music data (CD-DA)
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and MP3 files, playback of the two file
types differs depending on how the
disc was recorded.
Packet written discs cannot be played
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on this unit.
This unit does not play CDs recorded
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using MP3i (MP3 interactive), MP3
PRO and RIFF MP3 formats.
About folders and files
The order of hierarchy for MP3 files
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and folders during playback or other
functions is from shallow to deep. The
arrangement and playing order of a
recorded disc containing MP3 files is
as follows:
File number
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A numerical file number is assigned
to each file in a folder in the order of
hierarchy from shallow to deep.
Folder number
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A numerical folder number is
assigned to each folder in the order
of hierarchy from shallow to deep.
6-24
NOTE
Folders and tracks (files) within the same
hierarchy play in the order they were written to
the disc depending on the write software.
Folder
No.
3
2
4
5
1
Level1 Level2 Level3 Level4
Playback may not occur in the above
hierarchy depending on the audio unit.
The folder order is automatically
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assigned and this order cannot be
optionally set.
Any folder without an MP3 file will be
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ignored. (It will be skipped and the
folder number will not be displayed.)
MP3 files not conforming to the MP3
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format containing both header frames
and data frames will be skipped and
not played.
This unit will play MP3 files that have
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up to eight levels. However, the more
levels a disc has, the longer it will take
to initially start playing. It is
recommended to record discs with two
levels or less.
: Folder : Track (File)