Playback order of mp3/wma files, About mp3 files, About wma files – Sony MEX-BT2900 User Manual

Page 25: About bluetooth function, Playback order of mp3/wma files about mp3 files

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– CD-R/CD-RW other than those recorded in

music CD format or MP3 format conforming to
ISO9660 Level 1/Level 2, Joliet/Romeo or
multi-session.

Playback order of MP3/WMA files

About MP3 files

• MP3, which stands for MPEG-1 Audio Layer-3, is

a music file compression format standard. It
compresses audio CD data to approximately 1/10
of its original size.

• ID3 tag versions 1.0, 1.1, 2.2, 2.3 and 2.4 apply to

MP3 only. ID3 tag is 15/30 characters (1.0 and
1.1), or 63/126 characters (2.2, 2.3 and 2.4).

• When naming an MP3 file, be sure to add the file

extension “.mp3” to the file name.

• During playback or fast-forward/reverse of a VBR

(Variable Bit Rate) MP3 file, elapsed playing time
may not display accurately.

Note
If you play a high-bit-rate MP3, such as 320 kbps,
sound may be intermittent.

About WMA files

• WMA, which stands for Windows Media Audio,

is a music file compression format standard. It
compresses audio CD data to approximately 1/22*
of its original size.

• WMA tag is 63 characters.
• When naming a WMA file, be sure to add the file

extension “.wma” to the file name.

• During playback or fast-forward/reverse of a VBR

(Variable Bit Rate) WMA file, elapsed playing
time may not display accurately.

* only for 64 kbps

Note
Playback of the following WMA files is not supported.
– lossless compression
– copyright-protected

About Bluetooth function

What is Bluetooth technology?

• Bluetooth wireless technology is a short-range

wireless technology that enables wireless data
communication between digital devices, such as a
cellular phone and a headset. Bluetooth wireless
technology operates within a range of about 10 m
(about 33 feet). Connecting two devices is
common, but some devices can be connected to
multiple devices at the same time.

• You do not need to use a cable for connection

since Bluetooth technology is a wireless
technology, neither is it necessary for the devices
to face one another, such is the case with infrared
technology. For example, you can use such a
device in a bag or pocket.

• Bluetooth technology is an international standard

supported by millions of companies all over the
world, and employed by various companies
worldwide.

On Bluetooth communication

• Bluetooth wireless technology operates within a

range of about 10 m.
Maximum communication range may vary
depending on obstacles (person, metal, wall, etc.)
or electromagnetic environment.

• The following conditions may affect the

sensitivity of Bluetooth communication.
– There is an obstacle such as a person, metal, or

wall between this unit and Bluetooth device.

– A device using 2.4 GHz frequency, such as a

wireless LAN device, cordless telephone, or
microwave oven, is in use near this unit.

• Because Bluetooth devices and wireless LAN

(IEEE802.11b/g) use the same frequency,
microwave interference may occur and result in
communication speed deterioration, noise, or
invalid connection if this unit is used near a
wireless LAN device. In such as case, perform the
following.
– Use this unit at least 10 m away from the

wireless LAN device.

– If this unit is used within 10 m of a wireless

LAN device, turn off the wireless LAN device.

– Install this unit and Bluetooth device as near to

each other as possible.

• Microwaves emitting from a Bluetooth device may

affect the operation of electronic medical devices.
Turn off this unit and other Bluetooth devices in
the following locations, as it may cause an
accident.
– where inflammable gas is present, in a hospital,

train, airplane, or petrol station

– near automatic doors or a fire alarm

• This unit supports security capabilities that

comply with the Bluetooth standard to provide a
secure connection when the Bluetooth wireless
technology is used, but security may not be
enough depending on the setting. Be careful when
communicating using Bluetooth wireless
technology.

Folder
(album)

MP3/WMA file
(track)

MP3/WMA

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