ATRAC CD

An ATRAC CD is an optical disc containing compressed digital audio in the ATRAC3 or ATRAC3plus formats, which are part of Sony's ATRAC (Adaptive Transform Acoustic Coding) family of proprietary audio compression algorithms.

A Sony car stereo capable of playing ATRAC CDs

Description

ATRAC CD was used with SonicStage Simple Burner software (Ver.1.0 / 1.1) in February 2003,[1][2] and was subsequently replaced with SonicStage in 2004. The new CD Walkman product was called "ATRAC CD Walkman". In the following year (2004-2005), ATRAC CD boombox was introduced as a new product.

ATRAC Technology[3]
CD (Linear PCM) ATRAC*1 ATRAC3 ATRAC3plus
Bitrate 1411kbit/s 292kbit/s 132kbit/s 64kbit/s
DataSize (One 4 minute track) 42.33MB 8.77MB 3.97MB 1.94MB
Number of Tracks Recorded into CD-R（700MB) About 16tracks About 79tracks About 176tracks About 360tracks

*1 "ATRAC" here refers to the SP mode used in the MD format.

Software for burning ATRAC CD

The ATRAC CD can be burned with SonicStage Simple Burner Ver.1.1, SonicStage 2.x to 3.x and SonicStage CP. This software is able to create a disk image from MP3 files and compact discs, and can be burned with the included CD-R/RW drive on a computer.

Storage Comparison of ATRAC CD on a regular CD-R
Format Bitrate Songs (Estimated at 4 minutes / song)
ATRAC3plus 48kbps 490 Songs*1
ATRAC3plus 64kbps 360 Songs
ATRAC3 66kbps 350 Songs
ATRAC3 105kbps 220 Songs
ATRAC3 132kbps 170 Songs
ATRAC3plus 256kbps*2 90 Songs

See also

References
  1. Quick Reference Guide - SONY USA
  2. SONY D-NE1 Catalog
  3. "Sony Global - ATRAC - Overview". www.sony.net. Retrieved 2020-07-18.
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