3892 Sony OpenMG Audio Audio Sony OpenMG Audio files, often used for Minidisc players. The file, though originally designed for ATRAC3 (Adaptive Transform Acoustic Coding) audio files, can have different audio codecs such as MP3, ATRAC, ATRAC3, Linear PCM and WAV. These files can have DRM (digital rights management) protection, OpenMG refereing to the DRM system developed by Sony for managing and protecting digital music data on a personal computer. The OpenMG files have extensions of .omg and .oma. 347 University of Melbourne / University of Melbourne 04 Oct 2024 04 Oct 2024 audio/ATRAC-ADVANCED-LOSSLESS MIME fmt/2018 PUID oma File extension 3380 Sony Open MG Audio BOF; Offset: 0; Magic Bytes 'ea3.' followed in 996-3996 bytes by 'EA3'{1}0x0060{2}00000000010F5000 1 Absolute from BOF 0 0 656133{3069}454133 3405 1 Absolute from BOF 0 0 {8-16}6F70656E4D47