VOB (Video Object) is the container DVDs use. It holds MPEG-2 video and AC-3 or LPCM audio. Modern players generally don't open VOB directly outside of DVD software.

Where do I find VOB files?

In the VIDEO_TS folder on a DVD. Files like VTS_01_1.VOB, VTS_01_2.VOB are the actual movie content. Multi-part movies split across several VOB files.

Is converting commercial DVDs to MP4 legal?

Use this tool with content you own — home videos, family DVDs, personal recordings. We don't decrypt commercial DVD copy protection. If your VOB is encrypted (most retail discs are), the tool can't read it.

VOB to MP4 — in your browser

Home video DVDs, family archives, personal recordings burnt to disc — all locked in VOB files inside a VIDEO_TS folder. Drop a VOB here to convert it to MP4. Nothing uploads.

drop a .vob file here

or click to choose — from VIDEO_TS

What's inside a VOB file?

VOB stands for Video OBject. It's the DVD's container format — MPEG Program Stream wrapping MPEG-2 video, AC-3 (Dolby) audio, and DVD subtitles. The MPEG-2 video stream is ~720×480 (NTSC) or 720×576 (PAL). Bitrate caps at 9.8 Mbps per the DVD spec.

Converting VOB to MP4 transcodes MPEG-2 to H.264 (much more efficient at the same quality) and AC-3 to AAC (more compatible). The file gets much smaller — typically 30–50% of the original VOB size at equivalent quality.

Common VOB scenarios

Home video DVDs — family events someone burned in the 2000s. Often the only surviving copy.
Wedding videos — videographers delivered DVDs through the 2010s. Now you want them on phones.
Old camcorder transfers — Hi8 / VHS converted to DVD at a service shop.
Personal recordings — recorded TV broadcasts, baby video, vacation footage burnt to disc.

Multi-part DVDs

DVD spec caps VOB files at ~1 GB. Long content splits across VTS_01_1.VOB, VTS_01_2.VOB, etc. Convert each to MP4, then use our merge tool to join the MP4s back into one continuous video.

Upscaling DVD to HD — honest answer

You can pick 720p or 1080p output, and FFmpeg's scaler will do it cleanly. But the source is still ~480p, so you don't get more detail — just a bigger file. The upscale option is useful if your target device (Smart TV, modern phone) plays better at HD resolutions. For pure size efficiency, keep original DVD resolution.

Why browser-only matters here

VOB files almost always hold personal video. Uploading family footage to a converter site means a stranger's server holds a copy briefly. Here, the file stays on your laptop — load the page, disconnect from the network, drop a VOB. The conversion still works.

FAQ

I have a commercial DVD. Can I convert that?

Most retail DVDs are encrypted (CSS protection). Browsers can't decrypt them. You'd need a dedicated DVD ripping tool first — this page handles only unencrypted VOB files (which is most home-made content).

The VOB plays but skips between files. Is the converted MP4 the same?

Each VOB is ~1 GB by DVD spec. Convert each, then merge the MP4s into one seamless file.

The aspect ratio is wrong — everything looks squished or stretched.

DVDs use anamorphic encoding. The pixel dimensions are 720×480 but the display aspect can be 4:3 or 16:9. FFmpeg reads the SAR (sample aspect ratio) tag and corrects on conversion. If it's still wrong, the original DVD may have had bad metadata — try our resize tool to fix.

Will the audio track be preserved?

Yes. AC-3 audio is re-encoded to AAC. If the VOB has multiple audio tracks, only the first is kept by default.

Subtitles?

DVD subtitles are bitmap (PGS-like). They're not extracted in this tool. For hard-burned subtitle output, see our subtitle burn tool.

Does the file get uploaded anywhere?

No. The page runs FFmpeg in your browser. Disconnect after loading to verify.