OGV to VOB Converter

OGV to VOB Converter

OGV is the Ogg video container, almost always carrying Theora video with Vorbis audio — an open, royalty-free web format that has fallen out of use (Chrome disabled Theora playback in version 120 and Chromium dropped it in 123, March 2024). VOB (Video Object) is the DVD-Video container that holds the MPEG-2 streams stored inside a DVD's VIDEO_TS folder. This converter re-encodes your Ogg/Theora video into MPEG-2 video with AC-3 audio so it can be fed into DVD-authoring software. Worth knowing up front: a bare .vob file is not a finished DVD, and Theora to MPEG-2 is a lossy re-encode — so do this only when you specifically need a DVD-authoring input, not for general playback.

OGV Format at a Glance

VOB Format at a Glance

How to Convert OGV to VOB

1. Upload Your OGV File: Drag and drop your .ogv file onto the page or click "Add Files." You can queue several files and convert them with the same settings.
2. Set the Quality Preset: Open Advanced Options and choose a Quality Preset — the default "Very High (Recommended)" keeps the MPEG-2 re-encode visually close to your source.
3. Match a DVD Resolution (Optional): Under Video resolution, choose Width x Height and type 720 × 480 for NTSC or 720 × 576 for PAL so the output drops cleanly into DVD-authoring software — the Preset Resolutions list sets height alone and lets the width follow your source's aspect ratio, so it cannot pin a DVD frame. You can also use Trim to export only a Time Range.
4. Convert and Download: Click "Convert" and download your .vob file. No sign-up, no watermark.

Frequently Asked Questions

Can I play the VOB file directly, or burn it straight to a DVD?

Not as a finished DVD. A single .vob holds the multiplexed MPEG-2 audio/video stream, but a playable DVD also needs the .IFO (navigation) and .BUP (backup) files and the full VIDEO_TS folder structure. Some media players (VLC, MPC-HC) will open a lone VOB as a plain MPEG-2 file, but to make a disc a DVD player recognizes, load the VOB into DVD-authoring software (such as DVD Flick, ImgBurn, or DVDStyler) to generate VIDEO_TS.

Will converting OGV to VOB improve the quality?

No. Theora to MPEG-2 is a lossy-to-lossy re-encode, so you can only preserve or lose detail, never add it. MPEG-2 is also far less efficient than modern codecs, so a VOB will be considerably larger than the source for the same visual quality. Convert to VOB only when a DVD-authoring workflow requires it.

What video and audio codecs does the output use?

The output is DVD-compliant MPEG-2 (H.262) video with AC-3 (Dolby Digital) audio — the standard combination DVD players expect. The VOB container does not accept AAC or MP4 audio, which is why the Vorbis track in your OGV is re-encoded rather than copied through.

What resolution and frame rate should I pick for a DVD?

DVD-Video uses 720×480 at 29.97 fps for NTSC regions (North America, Japan) and 720×576 at 25 fps for PAL regions (most of Europe, Australia). Choosing the matching Preset Resolution avoids your authoring tool re-scaling the video a second time. In our testing, a short 1080p Theora clip exported cleanly to a 720×480 MPEG-2 VOB at the default Very High preset.

Why is my OGV file hard to play in the first place?

OGV relies on the Theora codec, which Chrome disabled by default in version 120 and Google removed from Chromium in 123 (March 2024), and which Firefox disabled by default in version 126. If a modern browser refuses to play your .ogv, converting it is the practical fix — though for everyday playback on phones, TVs, and browsers, MP4 (H.264) is a much better target than VOB.

My OGV is 16:9 widescreen — will the DVD VOB keep that?

DVD-Video supports widescreen, but through anamorphic storage rather than extra pixels: the frame stays 720×480 (NTSC) or 720×576 (PAL) and is tagged 16:9 so the player stretches it back to widescreen on playback. Type the standard DVD frame into Width x Height here, and if the picture ends up squeezed, set or confirm the 16:9 aspect flag in your DVD-authoring software when you build the disc.

My OGV runs at 24 or 60 fps — what frame rate does the VOB use?

DVD-Video is strict about frame rate: it allows only 29.97 fps for NTSC and 25 fps for PAL.

If your OGV was authored at 24, 30, or 60 fps, it has to be conformed to one of those DVD-legal rates when you choose the matching resolution, and that resampling can introduce slight judder on panning shots — a trade-off of the DVD spec, not a fault of the source. Match NTSC (720×480) or PAL (720×576) to your target region so the rate lands where the disc expects it.

Is the conversion private and free?

Yes. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark, never shared or made public. If you later need to pull a DVD's VOB back into a portable format, VOB to MP4 reverses the process.