.AT3 File Extension

ATRAC3 Audio File

Developer Sony
3.6  |  11 Votes
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What is an AT3 file?

Audio file created with Sony's Adaptive Transform Acoustic Coding 3 (ATRAC3) compression algorithm; designed for storage and playback on portable media devices, including Sony CD and MP3 players, the PlayStation Portable (PSP), and Sony Ericsson mobile phones.

More Information

AT3 files may also be seen as .AA3 files, or as .OMG files, which contain Digital Rights Management (DRM) protection.

Programs that open AT3 files

Verified by FileInfo.com

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