Sony CDX-GT50UI: About MP3 files About ATRAC files About WMA files About iPod About AAC files

About MP3 files

About ATRAC files

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

ATRAC3plus format

a music file compression format standard. It

ATRAC3, which stands for Adaptive Transform

compresses audio CD data to approximately 1/10

Acoustic Coding3, is audio compression

of its original size.

technology. It compresses audio CD data to

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

approximately 1/10 of its original size.

MP3 only. ID3 tag is 15/30 characters (1.0 and

ATRAC3plus, which is an extended format of

1.1), or 63/126 characters (2.2, 2.3 and 2.4).

ATRAC3, compresses the audio CD data to

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

approximately 1/20 of its original size. The unit

extension “.mp3” to the file name.

accepts both ATRAC3 and ATRAC3plus format.

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

• The ATRAC is in the structure of a 2-level

(variable bit rate) MP3 file, elapsed playing time

hierarchy; one folder (group), two files (tracks).

may not display accurately.

–ATRAC CD

Note on MP3

The maximum number of folders (groups) is

If you play a high-bit-rate MP3, such as 320 kbps,

255, and the maximum number of files (tracks)

sound may be intermittent.

is 999.

– ATRAC Audio Device

The maximum number of album/artists/playlists

About WMA files

is 65535, and the maximum number of tracks is

• WMA, which stands for Windows Media Audio,

65535.

is a music file compression format standard. It

• The characters for a folder/file name and text

compresses audio CD data to approximately 1/22*

information written by SonicStage are displayed.

of its original size.

For details on ATRAC CD and ATRAC Audio

• WMA tag is 63 characters.

Device, see the SonicStage manual.

• When naming a WMA file, be sure to add the file

extension “.wma” to the file name.

Note

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

Be sure to create the ATRAC files using authorized

(variable bit rate) WMA file, elapsed playing time

software, such as SonicStage.

may not display accurately.

* only for 64 kbps

About iPod

Note on WMA

This unit can be used with the dock connector type

Playback of the following WMA files is not supported.

iPod, iPod photo, iPod mini and iPod nano with the

– lossless compression

following software versions. All other versions

– copyright-protected

earlier than listed are not guaranteed.

– Third-generation iPod: Ver.2.3.0

– Fourth-generation iPod: Ver.3.1.1

About AAC files

– Fifth-generation iPod: Ver.1.2

• AAC, which stands for Advanced Audio Coding,

– iPod photo: Ver.1.2.1

is a music file compression format standard. It

– iPod mini: Ver.1.4.1

compresses audio CD data to approximately 1/11*

– First-generation iPod nano: Ver.1.3

of its original size.

– Second-generation iPod nano: Ver.1.1

• AAC tag is 126 characters.

(video function of fifth-generation iPod and

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

photo function of iPod photo are not supported).

extension “.m4a” to the file name.

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

If you have any questions or problems concerning

(variable bit rate) AAC file, elapsed playing time

your unit that are not covered in this manual, consult

may not display accurately.

your nearest Sony dealer.

* only for 128 kbps

Note on AAC

Playback of a copyright-protected file is not supported.

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