- Format tag: 0x270
- Company: Sony
- Samples: http://samples.mplayerhq.hu/A-codecs/ATRAC3/
- Technical: http://www.minidisc.org/aes_atrac.html
Same as RealAudio atrc, the RealAudio streams are XOR scrambled.
Sony Dynamic Digital System (SDDS), used in theatres, is based on ATRAC. Common use of the codec is in Sony made Minidisc and Flash based players.
There are some known variants:
- ATRAC Advanced Lossless (AAL)