VOB to OGG Converter

How to Convert VOB to OGG Online

1. Upload Your VOB File: Drag and drop or click "+ Add Files" to select VOB files from your DVD rip (typically VTS_01_1.VOB, VTS_01_2.VOB, ... in the VIDEO_TS folder). Batch conversion is supported — queue every VOB segment together and they will encode in order.
2. Pick Quality Preset and Audio Codec: Default is Highest with the Vorbis codec. Lower the Quality Preset (Lowest, Very Low, Low, Medium, High, Very High, Highest) to shrink file size, or switch the codec to Opus for the best low-bitrate efficiency, FLAC for a lossless archive, or Speex if you only need speech. Set a Custom Bitrate (e.g., 128, 192, 256 kbps) or pick Variable Bitrate for tighter sizes at equivalent quality.
3. Adjust Audio Channel, Sample Rate, and Trim (Optional): Leave Audio Channel and Audio Sample Rate at ORIGINAL to mirror the DVD source (usually 48 kHz stereo or 5.1), or downmix to Mono / Stereo and resample to 44.1, 32, or 24 kHz. Use the Trim section to cut a specific scene by setting start time and duration — useful for grabbing a single song or dialogue clip out of a 1 GB VOB.
4. Convert and Download: Click Convert. Each VOB is demuxed, the audio stream is decoded from AC-3/DTS/MPEG audio, re-encoded into the Ogg container, and delivered as a .ogg download — no sign-up, no watermark, no installed software.

Why Convert VOB to OGG?

VOB (Video Object) is the container DVD-Video discs use to multiplex MPEG-2 video, audio (typically Dolby Digital AC-3, DTS, MPEG-1 Layer II, or LPCM), subtitles, and navigation data — the format was locked in with the DVD-Video specification finalized in September 1996. OGG is an open, royalty-free container from the Xiph.Org Foundation whose Vorbis I bitstream was frozen in May 2000 (stable 1.0 software shipped July 19, 2002). Converting VOB to OGG strips out the video, subtitles, and navigation and gives you a small, portable audio file you can actually use.

• Rip a soundtrack from your own DVDs — concert films, language-learning discs, and director commentaries are often only available on disc. Pulling the audio into OGG lets you load it onto a phone, a Rockbox-flashed iPod, or a car head unit without dragging the multi-GB video with you.
• Slim massive DVD audio to manageable sizes — a single 1 GB VOB segment usually contains only 25-40 minutes of AC-3 audio at 192-448 kbps. Re-encoding to Vorbis at ~128 kbps typically cuts that to 20-40 MB while keeping perceptual quality close to the source.
• Royalty-free distribution for indie projects — Vorbis and Opus are patent-free, so podcasters, game developers, and open-source projects can ship audio without per-stream licensing fees that MP3 and (until recently) AAC carried.
• Better low-bitrate quality with Opus — for spoken word, audiobooks, and language audio extracted from a DVD, Opus at 48-64 kbps generally sounds better than MP3 at 96-128 kbps, making OGG the right archive choice for talk content.
• Linux, Firefox, Chrome, and Android playback out of the box — every major desktop browser plays OGG natively, as does Android's default media stack and VLC on all platforms. Apple Safari finally added native Vorbis playback in Safari 18.4 (macOS and iOS); for older Apple devices you may still need an MP3/AAC fallback.
• Lossless archival with FLAC-in-Ogg — if the source DVD already has lossless LPCM audio (some concert and classical releases do), selecting the FLAC codec preserves every sample while typically halving the size of the raw PCM stream.

VOB vs OGG — Format Comparison

OGG Codec Quick Guide

Frequently Asked Questions

Why is my OGG so much smaller than the original VOB?

A VOB file carries the full DVD program — MPEG-2 video at 4-8 Mbps plus AC-3 audio at 192-448 kbps. Converting to OGG discards the video and re-encodes only the audio stream, so the bitrate drops from several megabits per second to a few hundred kilobits at most. Expect roughly a 20-50x size reduction for music and over 100x for speech-only content encoded with Opus.

Should I pick Vorbis, Opus, or FLAC inside the OGG container?

Pick Vorbis at 128-192 kbps for music if you want the broadest compatibility with older players. Pick Opus at 64-96 kbps for speech, audiobooks, or podcasts — it sounds noticeably better than Vorbis or MP3 at low bitrates. Pick FLAC only if the VOB source is LPCM (uncompressed) and you want a lossless archive — re-encoding a lossy AC-3 source into FLAC will not restore quality, just bloat the file.

My DVD rip produced multiple VOB files — should I merge them first?

You do not have to. DVD-Video splits a single title into 1 GiB segments (VTS_01_1.VOB, VTS_01_2.VOB, etc.) so the contents stay readable on file systems that originally could not address files larger than that. Queue all the segments in upload order and the converter will process each one. If you want a single continuous OGG, concatenate the VOBs first with ffmpeg -i "concat:VTS_01_1.VOB|VTS_01_2.VOB|VTS_01_3.VOB" -c copy joined.vob (or a plain cat on the same VTS group on Linux/macOS) and then upload the merged file.

Will copy-protected (CSS-encrypted) DVDs convert?

No. Commercial DVDs are encrypted with CSS (Content Scramble System), and the VOB files inside VIDEO_TS are unreadable until decrypted. You must decrypt the disc to plain VOB before uploading — VLC and HandBrake handle this for personal-archive use where local law permits. Once the VOB is unencrypted (you can play it in VLC), conversion to OGG works normally.

What audio codec is inside a typical DVD VOB?

Most Hollywood and PAL/NTSC retail DVDs use Dolby Digital AC-3 at 192, 384, or 448 kbps (stereo or 5.1). Some discs ship DTS at 754 or 1509 kbps as an alternate track, MPEG-1 Layer II audio (common on early PAL Region 2 releases), or LPCM (common on music and concert discs). The converter auto-detects the source codec and decodes it before re-encoding to Vorbis, Opus, FLAC, or Speex.

Can I extract just one song or scene from a long VOB?

Yes. Open the Trim section, set Start time and Duration in hours:minutes:seconds:milliseconds, and only that segment will be encoded. A 90-minute concert VOB is a single audio stream, so trim to the exact track timestamps (e.g., start 00:14:23.000, duration 00:04:12.000) to get a single-song OGG without manual editing afterward. For more advanced cuts, see Audio Cutter.

Will OGG play on iPhone and iPad?

Native playback requires Safari 18.4 or later (Spring 2025) on macOS or iOS — older Apple devices will not play OGG in the Files app, Music app, or Safari. For iPhones running iOS 17 or earlier, install VLC for Mobile or use the VOB to MP3 converter instead for guaranteed compatibility.

What is the maximum file size I can upload?

A single DVD VOB segment is capped at exactly 1,073,741,824 bytes (1 GiB) by the DVD-Video specification, and the converter handles full segments. If you have a merged multi-segment rip larger than that, consider splitting it first or using the Video Cutter to extract a shorter range before audio extraction.

Are my files private?

Yes. Files are uploaded over HTTPS, processed in an isolated job, and auto-deleted from the server within a few hours. We never share or index your content, and there is no sign-up required to convert.