DV to VOB Converter

Convert DV to VOB: Tape Capture to DVD, Without a Downscale

A .dv file is the raw DV-DIF stream captured off a MiniDV, DVCAM or Digital8 tape over FireWire — no container, just the bytes the camcorder recorded, defined by IEC 61834 and SMPTE 314M. A VOB is the MPEG-2 program stream that DVD-Video uses. Most conversions into VOB are an exercise in shrinking modern HD footage into a standard-definition box it does not fit. This one is not, and that is what makes it worth doing carefully.

DV records 720x480 at 29.97 fps on the 525/60 systems and 720x576 at 25 fps on 625/50 systems. Those are exactly the rasters and exactly the frame rates DVD-Video specifies. Nothing has to be resized, nothing has to be frame-rate converted, and the interlaced field structure DV captured is the structure DVD expects. The re-encode is real — DV's intraframe DCT becomes MPEG-2 — but it is the gentlest possible version of this conversion.

How to Convert DV to VOB

1. Upload Your DV File: Drag the .dv capture onto the page or click "+ Add Files" to browse. Tape captures are large, so expect the upload to take longer than the conversion; several files can be queued and share one set of settings.
2. Leave Video Codec on MPEG-2 and Check Audio Codec: Video Codec offers MPEG-1 and MPEG-2, with MPEG-2 preselected — that is the codec DVD-Video requires and there is no reason to change it. Audio Codec is preselected on MP2, which every DVD player decodes; AC3 (Dolby Digital) and DTS (DCA) are the other DVD-legal choices, and MP3 is offered but is not valid on a disc.
3. Leave Video resolution on Keep original, and Set a Bitrate: Keep original holds the DV raster, which is already DVD-legal — this is the rare case where you should not touch it. Under File Compression, Quality Preset is preselected on Very High (Recommended); Constant Bitrate (prefilled at 4 Mbps) and Variable Bitrate (4 Mbps target, 2 Mbps floor, 8 Mbps ceiling) give you direct control. Trim takes a Start time and Duration for cutting a long tape down.
4. Convert and Download: Click "Convert" and save the .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.

Walk-through: The Three Things That Actually Change

Because the geometry lines up, only three properties of your footage are genuinely transformed. Knowing which is which tells you where to spend attention.

• The codec changes, and it is a lossy step. DV compresses each frame on its own with a fixed 25 Mbit/s budget; MPEG-2 predicts frames from their neighbours at whatever rate you set. A high bitrate makes the difference hard to see, but it cannot be undone, so keep the original capture.
• NTSC chroma is resampled. DV on 525/60 systems stores colour at 4:1:1 — full vertical colour resolution, quarter horizontal. DVD's MPEG-2 requires 4:2:0, which is half in both directions. Converting between them costs vertical colour resolution, and the classic symptom is a saturated red or orange edge looking soft or stepped. PAL DV is already 4:2:0 and is unaffected. Nothing on this page changes that behaviour; it is inherent to the two formats.
• The pixel aspect ratio is normalised to square. DV tapes flag widescreen in the stream header rather than by using more pixels, and that flag does not survive into the output — a 16:9 DV capture arrives with a 4:3-shaped 720x480 or 720x576 raster. This is not a problem for DVD authoring, because DVD-Video carries its own display-aspect flag that you set in the authoring tool. Set the disc to 16:9 there and the player stretches it correctly.

One practical limit to know about the bitrate controls: MPEG-2 cannot encode standard definition below roughly 2 Mbit/s without failing, so a request under that is raised to it. If you set Specific file size to something very small, the encoder will overshoot your target rather than break — half an hour of video at the 2 Mbit/s floor is about 450 MB whatever you asked for.

What DVD-Video Actually Requires

Raw DV Against the VOB You Get

Common Errors and How to Fix Them

• "My widescreen tape came out looking 4:3." DV flags widescreen in the stream rather than in the pixel dimensions, and that flag does not carry into the VOB. Set the display aspect to 16:9 in your DVD-authoring tool, which is where DVD-Video stores it anyway.
• "The .vob plays on my computer but the DVD player rejects the disc." A single VOB is not a finished DVD. A standalone player needs a VIDEO_TS folder with IFO navigation and BUP backup files alongside the VOBs, which authoring software builds — see below.
• "Reds and oranges look smeared." That is the 4:1:1 to 4:2:0 chroma resample on NTSC DV. Raising the bitrate does not fix it, because the colour resolution is lost before the encoder gets to work.
• "There is no sound." Check that Audio Codec is on MP2, AC3, or DTS. MP3 appears in the dropdown because it is shared with other video targets, but DVD-Video does not permit it and players will ignore the track.
• "I asked for a tiny file and got a big one." MPEG-2 has an effective floor around 2 Mbit/s at standard definition; below that the encoder cannot produce a valid stream, so your target is raised. Trim the footage instead of squeezing the rate.
• "Motion looks juddery on a progressive TV." The footage is interlaced and no deinterlacing is applied here — which is correct for a DVD, since the format was designed for interlaced material and the player handles it. It only looks wrong if you play the VOB in a computer player that does not deinterlace.

When This Doesn't Work

The output is the video object only. To get a disc that boots in a living-room player you still need DVD-authoring software to build the VIDEO_TS structure, add menus and write the disc — DVDStyler handles the authoring and ImgBurn the burn, both free. If your goal is not a physical disc at all, this is the wrong page: DV to MP4 gives you an H.264 file that plays on phones, browsers and smart TVs at a fraction of the size, and DV to AVI is the answer for legacy Windows editors. And if the tape capture is damaged — dropouts, a truncated FireWire transfer, a stream that ends mid-frame — the conversion will inherit the damage rather than repair it; re-capture the tape if you still can.

Frequently Asked Questions

Do I need to resize my DV footage for DVD?

No, and you should not. DV records at exactly the rasters DVD-Video specifies — 720x480 at 29.97 fps or 720x576 at 25 fps — so leaving Video resolution on Keep original produces a DVD-legal frame with no scaling at all. This is unusual: almost every other source format has to be resized to fit the disc. Changing the resolution here can only take you further from the specification.

Why is the VOB smaller than the DV file it came from?

Because DV is deliberately inefficient. It compresses each frame independently at a fixed 25 Mbit/s so that tape editing stays frame-accurate, which works out to roughly 12 to 13 GB per hour. MPEG-2 predicts frames from their neighbours and typically produces a good standard-definition picture around 5 Mbit/s, or about 2.2 GB per hour. You are trading editability for storage, which is exactly the trade DVD was designed around.

Should I pick MP2 or AC-3 for the audio?

MP2 is preselected and is safe on every DVD player, so leave it unless you have a reason. Choose AC-3 (Dolby Digital) if you want the audio to match what commercial NTSC discs carry, or if you are going to add a surround mix later in the authoring tool. Both are DVD-legal. The one to avoid is MP3, which appears in the list because the dropdown is shared with other video targets but is not permitted by the DVD-Video specification.

My DV file has four audio channels — what happens to them?

DV's 32 kHz 12-bit four-channel mode exists so that a second stereo pair can be dubbed onto the tape after recording. This conversion writes a single audio track, so the second pair does not survive as its own programme. If both pairs matter, split them out in a DV-aware editor before converting, then add multiple audio tracks in the DVD-authoring stage — DVD-Video supports up to eight of them, but that is a disc-authoring decision rather than something a single-file conversion can express.

How much of my tape fits on one disc?

At around 5 Mbit/s, a bitrate that keeps standard-definition MPEG-2 clean for typical camcorder material, a 4.7 GB DVD-5 holds roughly two hours of video plus audio. Push toward the specification's 9.8 Mbit/s ceiling for the sharpest picture and you get closer to an hour; a dual-layer DVD-9 at 8.5 GB roughly doubles either figure. A single VOB file is capped at 1 GiB regardless, so longer titles are split across numbered files automatically.

Is the interlacing a problem?

Not for a DVD. DV and DVD-Video are both interlaced standard-definition formats, and no deinterlacing is applied here, so the fields pass through intact and a television displays them the way they were shot. It only looks wrong if you preview the .vob in a computer player that does not deinterlace, where you will see comb teeth on motion. If you are heading for a progressive destination rather than a disc, deinterlace deliberately in a video editor rather than relying on the conversion.

Can I put several tape clips on one disc?

Convert each .dv capture separately here, then import all the resulting VOBs into your DVD-authoring tool, which is where titles, chapters and menus are assembled. Keep an eye on the total: the disc capacity, not the individual files, is the constraint. Trimming each clip before conversion is far more effective than lowering the bitrate across the whole disc.

Will a DVD made from DV look as good as the tape?

Close, but not identical. The frame geometry and motion are preserved exactly, so the difference is entirely in the codec change and, on NTSC material, the chroma resample. At 6 Mbit/s or above the MPEG-2 encode is hard to distinguish from the DV source on a television. What you cannot get back is DV's frame-independent structure, which is why archivists keep the original capture even after burning the disc.

Should I convert to VOB at all, or is MP4 better?

VOB only makes sense if you are authoring a physical DVD. If the goal is watching, sharing or archiving the footage, DV to MP4 gives a far smaller file that plays everywhere, and DV to MPG keeps MPEG-2 in a more ordinary container if a tool wants that codec without the DVD packaging. Going the other way — pulling an existing disc back into a modern file — is VOB to MP4.

How are my files handled?

Your DV capture is uploaded over an encrypted connection, converted on our servers, and both the upload and the VOB are deleted automatically after a few hours. Nothing is shared or made public, no account is needed, and there is no watermark. Because raw DV runs to gigabytes per hour, trimming to the section you need before uploading is by far the biggest time saving available.