Mazda 2012 CX-9 Owner's Manual page 266

Interior Comfort
Audio System
The maximum number of characters
l
that can be used for file names is as
follows. However, this unit will only
display up to 32 characters, including
the file extension (.mp3).
ISO9660 level 1
ISO9660 level 2
Joliet extended
format
Romeo extended
format
* English one-byte characters (capitalized only) and
underbar _ are available.
CAUTION
This unit can only play MP3 files that
have an MP3 file extension (.mp3)
attached. Do not attach an MP3 file
extension to any other type file as it
could cause noise to be emitted or a
malfunction in the unit.
About ID3 Tag display
This unit can only display ID3 Tag
l
album, track and artist names that have
been input using Ver.1.0/1.1/2.2/2.3
formats. Any other data that may have
been input cannot be displayed.
This unit can only display English
l
(including numerals) one-byte
characters. Use only English (including
numerals) one-byte characters when
inputting ID3 tags. Two-byte characters
and some special symbols cannot be
displayed.
6-24
Maximum number of
characters in a file name
(including a separator .
and the three letters of the
file extension)
*
12
*
31
64
128
Specialized glossary
MP3
Abbreviation for MPEG Audio Layer 3 .
A technical standard for audio
compression as decided by an ISO
(International Organization for
Standardization) MPEG working group.
Use of MP3 allows for audio data to be
compressed to approximately a tenth of
the source data size.
ISO 9660
An international standard for logical
formatting of CD-ROM files and folders.
It is divided into three separate levels
based on differences in file naming
procedures, data configuration and other
characteristics.
Multi-session
A session is the complete amount of data
recorded from the beginning to the end of
a single period of CD-ROM, CD-R/CD-
RW data recording. Multi-session refers to
the existence of data from two or more
sessions on a single disc.
Sampling
Refers to the process of encoding analog
audio data at regular intervals and
converting it to digital data. The sampling
rate refers to the number of times a
sample is taken in one second and is
expressed in Hz units. Increasing the
sampling rate improves the sound quality
but also increases the data size.