Click the "Select File" button above, and choose your OMG file.
You'll see a preview.
Click the "Convert file to..." button to save your file in the format you want.
Convert OMG to another file type
The converter easily converts your OMG file to various formats - free and online. No Media Player or extra software needed.
Convert a file to OMG
The converter also works in reverse, so you can convert other Disk Image formats to OMG with high quality output.
About OMG files
The .OMG extension represents two distinct, proprietary formats that often cause frustration due to their incompatibility with modern software.
1. O&O DiskImage Backup (Primary)
The most common .OMG file is a system backup created by O&O DiskImage. These are exact sector-based copies of a hard drive used for disaster recovery. The Problem: You cannot open these files in Windows Explorer, and they are useless without the original software. Users often encounter these when trying to restore data from an old external drive or attempting to virtualize a physical machine. Solution: You must use O&O DiskImage (typically the "Professional" or "Server" edition). The software includes a built-in tool to convert .OMG files directly to VHD (Virtual Hard Disk), allowing you to mount the backup in VirtualBox or Hyper-V.
2. Sony OpenMG Audio (Legacy)
If your file is a music track from the early 2000s (e.g., from a MiniDisc or VAIO), it is a Sony OpenMG Audio file. The Problem: These files use ATRAC3 compression wrapped in aggressive DRM (Digital Rights Management). They were designed to prevent copying and are locked to the specific hardware or SonicStage installation that created them. Solution: Modern converters like FFmpeg cannot decrypt these files. The only reliable method is to locate a working installation of SonicStage (often requiring a Windows XP Virtual Machine), authorize the library, and use the "Burn to CD" feature to create a standard Audio CD, which can then be ripped back to MP3 or FLAC.
Use Convert.Guru to open and convert your OMG file.
If you want to convert OMG file to PDF, MP3, WAV, AAC, FLAC, OGG, WMA, M4A, AIFF, OPUS, ALAC or APE, you can use O&O DiskImage or similar software from the "Disk Image Backup" category. In the File menu, look for Save As… or Export….
To convert MIDI, AAC, TTA, AU, WV, DTS, MID, FLAC, RA, MP3, PCM or WAV files to OMG, try O&O DiskImage or another comparable tool in the "Disk Image Backup" category.
The OMG Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our OMG converter.