DivX to VOB Converter

DivX vs VOB — Why Convert, and What You Get

DivX is a compact MPEG-4 Part 2 (ASP) video, almost always in an AVI container with MP3 audio. VOB is the DVD-Video container — an MPEG-2 program stream with AC-3, MP2, or LPCM audio — that standalone DVD players actually read. Convert DivX to VOB when you want to author a disc for an old DVD player that won't touch a DivX file. Just know two things up front: the conversion re-encodes from MPEG-4 to MPEG-2, so the file usually gets larger, and a single .vob is not a playable DVD by itself — you still need a DVD-authoring step.

Side-by-side Comparison

When to Stay on DivX (or Convert to MP4 Instead)

• You only need to play the video on a computer, phone, smart TV, or media-streaming box — those handle MPEG-4 natively.
• You want the smallest file. MPEG-2 is less efficient than MPEG-4 ASP, so VOB output is usually bigger than the DivX you started with.
• You're sharing online or by email. For modern playback, convert DivX to MP4 instead — H.264/MP4 is smaller and plays nearly everywhere.

When to Convert to VOB

• You're building a video DVD for an older standalone DVD player that has no DivX support and no DivX-Certified logo.
• You're feeding a DVD-authoring program. Tools like DVD Flick, ImgBurn, or Nero expect MPEG-2 video and produce the full VIDEO_TS structure.
• You need DVD-standard audio. VOB uses AC-3 or MP2, the codecs a hardware DVD player decodes — DivX's MP3 track has to be re-encoded for the disc.

How to Convert DivX to VOB

1. Upload Your DivX File: Drag and drop your .divx or .avi file, or click "Add Files." You can queue several clips and convert them with the same settings.
2. Pick Quality Preset: Open Advanced Options and set the Quality Preset (Very High is the default) or, for DVD targets, switch to Constant Bitrate and keep it under ~9.8 Mbit/s so the stream stays DVD-compliant.
3. Set Resolution (Optional): Under Video resolution, choose Width x Height and type 720 × 480 for NTSC or 720 × 576 for PAL DVDs — the Preset Resolutions list sets height only and lets the width follow your source's aspect ratio, so it cannot pin a DVD frame. Leave "Keep original" if you'll let your authoring tool scale it.
4. Convert and Download: Click Convert and download your VOB. Files upload over an encrypted connection, are processed on our servers, and are deleted automatically after a few hours. No sign-up, no watermark.

DVD-Video (VOB) Technical Constraints

A VOB has to obey the DVD-Video spec, which is stricter than a general video file. If you're authoring a disc, target these values:

Frequently Asked Questions

Will the VOB file be larger than my DivX file?

Usually, yes. DivX uses MPEG-4 Part 2, which is more efficient than the MPEG-2 codec required by VOB, so re-encoding to DVD-Video typically increases the file size even at similar visual quality. That's the trade-off for getting a stream a standalone DVD player can read.

Can I just burn this VOB to a disc and play it?

Not on its own. A playable video DVD needs the full VIDEO_TS folder — the VOB files plus the IFO navigation files and their BUP backups. Import the VOB into DVD-authoring software (DVD Flick, ImgBurn, or Nero) to generate that structure and burn a compliant disc.

Why won't my standard DVD player play the original DivX file?

The DVD-Video specification only allows MPEG-2 (and MPEG-1) video — DivX's MPEG-4 ASP isn't part of the standard. Some players carry a "DivX Certified" logo and can read DivX directly, but most older set-top players can't, which is exactly why converting to MPEG-2 VOB helps.

What resolution should I choose for a DVD?

Use 720×480 for NTSC (North America, Japan) or 720×576 for PAL (most of Europe and Asia) — those are the frame sizes the DVD-Video spec defines. In our testing, leaving a 16:9 DivX at its original resolution and letting the authoring tool downscale to 720×480 produced a clean anamorphic widescreen DVD.

Does converting to VOB lose quality?

It's a re-encode, so there's some generation loss going from MPEG-4 to MPEG-2. Keeping the bitrate high (close to the ~9.8 Mbit/s DVD ceiling) minimizes it, but you'll never gain detail the source DivX didn't already have. If you don't actually need a DVD, converting to MP4 avoids forcing the less-efficient MPEG-2 codec.

Why isn't AAC an audio option for the output?

DVD-Video doesn't support AAC. The spec allows AC-3 (Dolby Digital), MPEG-1/2 Layer II, LPCM, and DTS — so the converter re-encodes the DivX file's MP3 track into a DVD-compatible codec rather than passing it through.

How much video fits on a DVD, and why is my VOB split into 1 GB pieces?

A single-layer DVD-5 holds about 4.7 GB (~4.38 GiB) — roughly two hours at standard DVD-Video bitrates — and a dual-layer DVD-9 holds about 8.5 GB, or roughly twice that. Because MPEG-2 is less efficient than the DivX you started with, a long film may need a dual-layer disc or a lower bitrate to fit. The DVD-Video spec also caps each VOB file at 1 GiB, so a feature is stored across several files (VTS_01_1.VOB, VTS_01_2.VOB, and so on) that your DVD player reads back seamlessly.

Is the conversion private?

Yes. Your file uploads over an encrypted connection, is processed on our servers, and is deleted automatically after a few hours. There's no sign-up, no watermark, and your files are never shared or made public.