Convert any video file to M4V format online for free. Fast, secure, and easy-to-use video to M4V converter with no software installation required.
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Max file size: 50 MBMax duration: 30 min
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Drag and drop your VOB file, or click to browse for it.
Choose M4V as the output and click Convert. The conversion runs on our servers, so your device does none of the work.
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Your file is used only to make your conversion. It is never published or shared, and the download link expires after one hour.
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How the two formats differ on the things that change your result.
| Specification | VOB (source) | M4V (result) |
|---|---|---|
| Container | DVD-Video (MPEG-2 PS) | MPEG-4 (Apple variant) |
| Developed by | DVD Forum | Apple |
| Introduced | 1996 | 2005 |
| Video codecs | MPEG-2 | H.264 |
| Audio codecs | AC-3, DTS, LPCM, MP2 | AAC, AC-3 |
| Max resolution | Standard definition | 4K UHD |
| Typical bitrate (1080p) | 4–9 Mbps | 4–20 Mbps |
| Multiple audio tracks | Yes | Yes |
| Subtitle tracks | Embedded (soft) subtitles | Embedded (soft) subtitles |
| Chapter markers | Yes | Yes |
| Streaming optimized | No | Yes |
| Licensing | Patents expired | Patent-licensed |
| Plays natively on | Needs a player: macOS, Android, Windows | Native: macOS, iOS · Needs a player: Web browsers, Windows, Android, Smart TVs |
| Best for | DVD archives, home theatre, legacy archives | the Apple ecosystem, iTunes libraries, home theatre |
The video stream has to be fully re-encoded: VOB typically carries MPEG-2, and M4V expects H.264. That means a real transcode, so allow for processing time and a small generational quality cost.
M4V is built for streaming and progressive download, so the result starts playing before it has fully loaded, which the source format does not do well.
Compatibility is the main win here: M4V plays natively on macOS and iOS, where VOB needs a separate player, so the result works without asking anyone to install anything.
At 1080p, VOB typically runs around 6.5 Mbps while M4V sits near 12 Mbps, which is the main driver of the size difference you will see.
This page converts VOB video, stored in the DVD-Video (MPEG-2 PS) container since 1996, into M4V, which uses MPEG-4 (Apple variant) and dates from 2005. The codecs each container accepts decide whether the picture has to be re-encoded.
VOB comes from DVD Forum and dates to 1996. It usually holds MPEG-2 video with AC-3, DTS, LPCM, or MP2 sound, and those streams set the ceiling for anything converted out of it.
M4V comes from Apple and dates to 2005. It holds H.264 video alongside AAC or AC-3 audio, and without installing anything it plays on macOS and iOS.
After converting your file, you can use Scriptivox transcription services to convert your audio to text. Perfect for meetings, interviews, podcasts, and more.
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