Convert VOB (DVD) to MP4

DVDs store video as VOB files that most players and phones will not open, and a single film is usually split across VTS_01_1.VOB, VTS_01_2.VOB and so on. Add them all and they are detected as one set, sorted correctly, and joined into a single MP4.

Sorting matters more than it sounds: a plain alphabetical sort puts segment 10 straight after segment 1, which silently scrambles the film. These are ordered numerically. The VTS_xx_0.VOB file is the DVD menu rather than the feature, so it is left out.

When every segment shares the same codec and resolution the join is a straight copy — instant, with no quality loss at all. When they differ the video is re-encoded instead, and you are told which is happening before it starts.

How to use it

  1. Add the VOB files from the VIDEO_TS folder of your DVD rip.
  2. If a title was split across several VOBs, add them all — they are detected and joined in order into one continuous video.
  3. Choose whether to keep it as one file or leave the parts separate.
  4. Press Convert and download the MP4.

Supported formats and limits

Input
VOB, plus IFO-era DVD structures
Output
MP4 (H.264)
Segments
Split titles are detected and rejoined into one video
Audio
Carried across, including multiple tracks where present
Where it runs
In your browser; the disc footage is never uploaded

Not for: Copy-protected commercial discs — this converts files you already have, it does not remove DVD encryption.

Frequently asked questions

Are my files uploaded to a server?
No. This conversion runs entirely inside your browser using your own device’s processing power. The file never leaves your computer or phone, which is why it also works when your connection drops.
Why are my DVD files split into several VOBs?
The DVD format caps each file at 1 GB, so a feature is spread across numbered segments. Joining them restores one continuous video.
How large a DVD can I convert?
Conversion runs in your browser, so memory is the limit: you are warned above 500 MB and stopped above 1.5 GB. A full 4–8 GB DVD rip needs desktop software such as HandBrake.

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