About usb devices, About mp3 files, About wma files – Sony Bluetooth 3-299-319-12 (1) User Manual

Page 23: About aac files

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About USB devices

• Mass Storage Class and ATRAC Audio Device

type USB devices compliant with the USB
standard can be used. However, this unit cannot
recognize USB devices via a USB HUB. For
details on the compatibility of your USB device,
visit the Sony support website (page 27).

• Corresponding codec is different according to

device type.
– Mass Storage Class: MP3/WMA/AAC
– ATRAC Audio Device: ATRAC/MP3/WMA/

AAC

• DRM (Digital Rights Management) files other

than ATRAC cannot be played.

• The maximum number of displayable data is as

follows.
Mass Storage Class:
– folders (albums): 128, files (tracks) per folder:

500

ATRAC Audio Device: ATRAC/MP3/WMA/AAC
– albums/artists/playlists/genres: 65,535, tracks:

65,535

Notes
When using a cable, use the one supplied with the

USB device to connect.

Do not use a USB device that is so large or heavy it

may interfere with driving operations.

Do not leave a USB device in a parked car, as

malfunction may result.

It may take time for playback to begin, depending on

the amount of recorded data.

Backup of data in a USB device is recommended.

Playback order of MP3/WMA/AAC
files (CD-R/RW or Mass Storage
Class)

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 a lossless compression file is not
supported.

About AAC files

• AAC, which stands for Advanced Audio Coding,

is a music file compression format standard. It
compresses audio CD data to approximately 1/11*
of its original size.

• AAC tag is 126 characters.
• When naming an AAC file, be sure to add the file

extension “.m4a” to the file name.

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

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

* only for 128 kbps

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

Folder

(album)

MP3/WMA/
AAC file
(track)

MP3/WMA/AAC

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