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VOB to M4A Converter

Convert VOB to M4A online for free. Fast, secure, and high-quality conversion with no sign-up or software required.

Free to useNo file stored beyond 1 hourEncrypted over TLS 1.2/1.3No watermarks

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How it works

Three steps to your converted file

Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.

01

Upload your file

Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.

02

Choose an output format

Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.

03

Convert & download

Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.

What is a VOB file?

The VOB (DVD-Video Object) format is a container format used in DVD-Video media, strictly compliant with the MPEG-2 Program Stream standard (ISO/IEC 13818-1). Located within the VIDEO_TS directory of a DVD, a VOB file multiplexes MPEG-2 video streams, audio streams (formats including Linear PCM, AC-3, or DTS), and subtitle streams (subpictures) into a single datastream. The format supports copy protection via the Content Scramble System (CSS) and functions as the core delivery mechanism for standard-definition digital video on optical discs.

How to open a VOB file

VOB files are natively supported by standalone DVD players and computer software designed for DVD playback, such as CyberLink PowerDVD. On standard operating systems without dedicated DVD software, the format can be opened using the VLC media player, GOM Player, or MPC-HC, which contain the necessary MPEG-2 decoders. Users may need to open the associated IFO files to navigate menus properly rather than playing raw VOB segments.

VOB Technical Info

Full Name
DVD-Video Object
Developed By
DVD Forum
Initial Release
1995
MIME Type
video/dvd

What is an M4A file?

The M4A file extension denotes an audio-only MPEG-4 container, defined by ISO/IEC 14496-14 standards and typically encoded using Advanced Audio Coding (AAC) or Apple Lossless (ALAC). Originally popularized by Apple to differentiate audio content from standard .MP4 video files, the container utilizes an atom-based structure (e.g., ftyp, moov, mdat) to store audio streams and metadata. It serves as the successor to MP3, offering superior compression efficiency and fidelity at equivalent bitrates.

How to open an M4A file

M4A files are natively supported by the Apple ecosystem (iTunes, QuickTime, iOS Music) and Windows Media Player on modern Windows versions. Cross-platform compatibility is robust, with VLC Media Player, Audacity, and Winamp providing decoding capabilities. On Android devices, native players often handle M4A, though third-party apps like Poweramp ensure compatibility with ALAC-encoded variants.

M4A Technical Info

Full Name
MPEG-4 Audio
Developed By
Apple Inc. / MPEG
Initial Release
2001
MIME Type
audio/mp4

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Why RunConvert

The fastest way to convert any file

Purpose-built for speed, privacy, and breadth of format support.

Convert VOB to M4A in seconds

Every VOB to M4A conversion runs on our servers, so your device stays fast and the output quality stays intact.

Fast, cloud-powered

No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.

Secure & private

Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.

Free - no account needed

Convert without creating an account - no credit card, no trial clock. Sign in only if you want history and higher daily limits.

Developer API

Convert VOB to M4A via API

Automate VOB to M4A conversions in three steps: create a job, upload your file, then poll for the result.

# 1. Create job
curl -X POST https://api.runconvert.com/v3/jobs \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "tag": "vob-to-m4a",
    "tasks": {
      "upload-file": {
        "operation": "import/upload"
      },
      "convert": {
        "operation": "convert",
        "input": "upload-file",
        "output_format": "m4a"
      },
      "export-result": {
        "operation": "export/url",
        "input": "convert"
      }
    }
  }'

# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.vob

# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$JOB_ID?include=tasks \
  -H "Authorization: Bearer YOUR_API_KEY"

Replace YOUR_API_KEY with your RunConvert API key. Get your free API key at runconvert.com/api.