Free online OMG to OPUS converter

What the OMG format is

In the Audio category, OMG refers to Sony OpenMG audio files, commonly containing ATRAC or ATRAC3 audio. Sony OpenMG Jukebox and SonicStage created these files for Network Walkman players and other Sony music devices. You may encounter them in old SonicStage libraries, backups, or folders copied from Sony hardware. Some OMG files contain OpenMG DRM and cannot be decoded by general-purpose converters.

What the OPUS format is

Opus is a lossy audio codec normally stored in an Ogg container with the .opus extension. It supports music and speech at low bitrates, works in current browsers and many media players, and is substantially more efficient than uncompressed WAV. Use roughly 64k for speech, 96k for general stereo audio, or 128k–160k for higher-quality music.

How to convert OMG to OPUS

Try FFmpeg with an unprotected file

1. Keep the original OMG file unchanged and install a current FFmpeg build.
2. Check whether FFmpeg recognizes the file: ffprobe input.omg.
3. If FFmpeg detects an audio stream, convert it with ffmpeg -i input.omg -c:a libopus -b:a 96k output.opus. For music, replace 96k with 128k or 160k.
4. Play output.opus and check its duration, channel count, and audible output before processing the rest of the library.

FFmpeg may recognize the ATRAC audio but fail on the OMG container or its OpenMG encryption. Renaming the extension does not remove DRM and will not make a protected file convertible.

Use SonicStage for protected files

1. Open the library in the SonicStage or OpenMG Jukebox installation that manages the files and confirm that the tracks play there.
2. Use an available authorized WAV export function. If the installation does not provide one, burn the tracks as a standard audio CD through SonicStage.
3. Import the resulting CD tracks as WAV files with a CD-ripping application.
4. Encode each WAV file with ffmpeg -i track.wav -c:a libopus -b:a 128k track.opus.

The audio-CD method is a playback-and-rip workflow, not a direct DRM conversion. Do not bypass OpenMG protection or copy protected files outside the rights granted by the original software and purchase.

Convert without installing software

You can try the free converter on 101convert.com by uploading the OMG file and selecting OPUS. Protected OpenMG files may be rejected because a web converter cannot access the required SonicStage license.

Quality and compatibility limits

ATRAC audio in OMG files is usually already lossy, so converting it to Opus cannot restore lost detail. Use a moderate or high Opus bitrate rather than repeatedly converting through another lossy format. Preserve the original files if metadata, album art, ratings, or DRM licenses matter: a WAV intermediate may lose Sony-specific metadata, and an Opus file normally retains only metadata supported by the conversion tool.