MPEG-2 to OGG Converter

Extract MPEG-2 Audio to OGG: What This Tutorial Covers

A .mpeg2 file is an MPEG-2 program stream — the DVD-Video and digital-broadcast format standardised as ITU-T H.262, first approved in July 1995 and produced jointly with ISO/IEC. Its soundtrack is almost always Dolby Digital (AC-3) or MPEG-1 Audio Layer II (MP2). This tutorial covers pulling that soundtrack out and re-encoding it into an Ogg file using Vorbis, which Xiph.Org describes as "a fully open, non-proprietary, patent-and-royalty-free, general-purpose compressed audio format for mid to high quality audio and music" (the Vorbis I bitstream was frozen on 8 May 2000). The video track is discarded.

How to Convert MPEG-2 to OGG

1. Upload Your MPEG-2 File: Drag and drop your .mpeg2 file onto the page or click "+ Add Files" to browse. Queue several clips and they all convert with the same settings.
2. Keep Vorbis or Change the Audio Codec: Open Advanced Options. The Audio Codec list holds exactly four entries — Vorbis (the default for .ogg), Opus, FLAC and Speex. Leave it on Vorbis unless you have a specific reason not to; each alternative rewires the controls below it.
3. Set File Compression, Audio Channel or Trim: File Compression opens on Quality Preset, whose Preset list runs Highest → Lowest with "Very High" flagged as Recommended; switch to Constant Bitrate, Variable Bitrate, Custom Bitrate or Specific file size if you need a number instead. Audio Channel folds a surround track down to Stereo or Mono, and Trim exports a Start time plus a Duration.
4. Convert and Download: Click Convert and save the .ogg on its own or as a ZIP. 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: What Each Codec in the Ogg Container Changes

Ogg is a container, not a codec, so the Audio Codec dropdown is the single most consequential control on this page. Picking anything other than Vorbis silently changes which of the other controls still mean anything:

Three specifics worth knowing before you change it:

• Opus and 44100 Hz. RFC 6716 defines Opus at 8, 12, 16, 24 and 48 kHz only — 44.1 kHz is not one of them. The 44100 Hz entry still appears in the shared Audio Sample Rate list, and picking it does not fail: our validation layer snaps the request to the nearest valid rate, which is 48000 Hz.
• Speex forces a downsample. Selecting Speex removes "Original" from Audio Sample Rate and leaves only 8000 Hz and 16000 Hz, so a 48 kHz DVD track is resampled to telephone or wideband-speech rate. Xiph.Org's own position is blunt: "The Speex codec has been obsoleted by Opus… since Opus is better than Speex in all aspects, users are encouraged to switch."
• FLAC ignores the bitrate boxes. The bitrate controls still render when FLAC is selected, but a lossless encoder has no bitrate to set, so anything you type there is thrown away and replaced with a fixed compression level. The Quality Preset is the one control that still does something: it is remapped onto FLAC's 0–12 compression-level scale, which changes file size and encode time but never fidelity.

What Each File Compression Mode Emits for Vorbis

Vorbis's own limits are what most of these clamp against: a 32–320 kbps constant-bitrate range and an eleven-step quality scale. There is no mode on this page that produces a lossless Vorbis stream, because no such thing exists — if you need lossless, that is the FLAC row above.

Which Audio Track a DVD Rip Actually Gives You

There is no track picker on this page, and that matters more on DVD material than on anything else. A retail disc frequently carries several audio streams — a 5.1 main mix, a 2.0 stereo mix, a director's commentary, a foreign-language dub — and the selection rule is FFmpeg's documented default: "for audio, it is the stream with the most channels", and "in the case where several streams of the same type rate equally, the stream with the lowest index is chosen."

In practice that means a 5.1 AC-3 track wins over a stereo track on the same disc, even when the stereo mix is the one you wanted. If your extract comes out with quiet dialogue or an odd balance, that is the 5.1 stream being folded down, not a decoding fault. Set Audio Channel to Stereo so the downmix is done deliberately, and the centre channel — which carries speech — is mixed into both sides at a normal level. If you specifically need the stereo stream rather than a downmix of the surround stream, demux the source with a desktop tool first.

Common Errors and How to Fix Them

• "I picked 384K under Variable Bitrate and got a constant 320 kbps file." The Vorbis quality map on this page covers 48K through 320K. The 384K entry falls outside it, so the request drops through to the fixed-bitrate path and is then clamped to Vorbis's 320 kbps ceiling — you get a constant 320 kbps encode instead of a quality-targeted one. Pick 320K to get the top quality-mode setting.
• "Dialogue is buried under music and effects." A 5.1 → stereo fold-down issue, per the section above. Re-run with Audio Channel set to Stereo.
• "The .ogg won't open on my iPhone, iPad, or in the macOS Music app." Apple's built-in players do not handle Ogg Vorbis. Use VLC on those platforms, or extract to MPEG-2 to MP3 instead.
• "It sounds no better than the source." MPEG-2 program streams carry lossy audio (AC-3 or MP2), so this is a lossy-to-lossy transcode. Re-encoding cannot rebuild detail the original already discarded — choose a rate at or above the source, not below it.
• "The result is 8 kHz and sounds like a phone call." You left Audio Codec on Speex. Switch back to Vorbis or Opus and re-run.

When This Doesn't Work

If your DVD is a retail disc protected with CSS, nothing here can read it — you need desktop software that decrypts and rips the disc to a plain .mpeg2 or .vob file first, and only then upload that. If you want to keep the picture as well as the sound, this is the wrong tool entirely: use MPEG-2 to MP4. And if you need to shorten a long capture before extracting, trim the source with the Video Cutter rather than the audio tools, because those reject video input. For a lossless archive of the decoded waveform instead of a re-compressed one, MPEG-2 to FLAC is the better target.

Frequently Asked Questions

Does converting MPEG-2 to OGG keep the video?

No. This is an audio extraction — the video track is discarded and you get an audio-only .ogg. If you want the picture alongside the sound, convert to a video format with MPEG-2 to MP4, or to the open-format equivalent with MPEG-2 to WebM.

My DVD has a 5.1 track and a stereo track — which one ends up in the OGG?

Almost always the 5.1 one. There is no track selector, so the pipeline uses FFmpeg's default rule of taking the audio stream with the most channels, breaking ties by lowest stream index. A six-channel AC-3 main mix therefore beats a two-channel mix on the same disc. Set Audio Channel to Stereo if you want a clean deliberate downmix; if you need the stereo stream itself rather than a fold-down of the surround stream, you have to demux the file with a desktop tool before uploading.

Why did picking 384K under Variable Bitrate give me a 320 kbps constant-bitrate file?

Because 384K sits outside the Vorbis quality map used on this page, which runs from 48K to 320K. When a Variable Bitrate entry has no quality-mode equivalent the request falls through to a plain target-bitrate path, and that value is then clamped to the Vorbis ceiling of 320 kbps. The result is a constant 320 kbps encode rather than a quality-targeted variable one. Choose 320K if you want the top quality setting; the difference above roughly 256 kbps is very hard to hear on DVD-sourced material anyway.

Does choosing Opus with a 44100 Hz sample rate fail?

No. Opus has no 44.1 kHz mode — RFC 6716 defines it at 8, 12, 16, 24 and 48 kHz — but 44100 Hz still appears in the shared Audio Sample Rate dropdown. Rather than erroring, our validation layer snaps the request to the nearest supported rate, which is 48000 Hz. That is also the rate DVD audio is mastered at, so for a DVD extract the practical result is identical to leaving the control on Original.

Why does Speex only offer 8000 Hz and 16000 Hz?

Because Speex is a speech codec, not a music codec. It was designed around narrowband (8 kHz), wideband (16 kHz) and ultra-wideband (32 kHz) operation, and this page exposes only the first two — "Original" disappears from the sample-rate list entirely, so a 48 kHz DVD soundtrack is forcibly resampled down. Xiph.Org states plainly that "the Speex codec has been obsoleted by Opus," so unless you are feeding something that specifically requires a Speex bitstream, pick Vorbis or Opus.

What happens if I select FLAC inside a .ogg file?

You get a genuinely lossless FLAC stream inside an Ogg container, but the bitrate controls stop meaning anything. FLAC does not take a bitrate, so any number you type is discarded and replaced with a fixed compression level; only the Quality Preset still has an effect, and it is remapped onto FLAC's 0–12 compression-level scale, which trades encode time against file size without touching fidelity. Be clear about what this buys you, though: a lossless copy of an already-lossy AC-3 or MP2 track is simply a much larger file holding exactly the same audio. If you want a plain .flac file rather than FLAC-in-Ogg, use MPEG-2 to FLAC.

Should I pick Vorbis or Opus for a DVD or broadcast extract?

Opus is the newer Xiph codec and holds up better at low bitrates, so if your destination accepts it, MPEG-2 to Opus is technically the stronger choice. The reason to stay on .ogg with Vorbis is tooling: many game engines, internet-radio stacks and long-standing Linux applications expect Vorbis-in-Ogg specifically and will not take an Opus stream. If you are feeding one of those, Vorbis is not a compromise — it is the requirement.

Will the OGG sound better than the MPEG-2 audio it came from?

No, and no converter can make that true. DVD and broadcast MPEG-2 carry lossy audio — AC-3 on discs, MP2 on VCD and older broadcast — so this is a lossy-to-lossy transcode, and the second encode can only preserve or degrade what the first one kept. The practical guidance is to encode at or slightly above the source's effective rate rather than below it: for a music-heavy mix that usually means the higher Quality Presets or a 192–256 kbps setting, while speech-heavy captures stay transparent much lower.

How are my files handled, and how long are they kept?

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. The practical constraint on a long DVD rip is upload size and time over your connection rather than any per-file quota.