OGV to M2V Converter

Convert OGV to M2V: Read This First

This page re-encodes the video from an Ogg .ogv file into a raw .m2v — an MPEG-2 video elementary stream. Two things are true of that output and both surprise people:

• The audio is dropped. An .m2v has nowhere to put a soundtrack, so whatever Vorbis or Opus track your OGV carried does not survive. The result is silent by design, not by accident.
• Only one codec actually works. The Video Codec list on this page shows nearly a dozen entries, but an .m2v container will accept MPEG-2 and nothing else. Leave the setting where it is.

If what you want is a playable file rather than a demuxed stream for a DVD-authoring or MPEG-2 editing tool, you want OGV to MPEG, which keeps the audio in a real container, or OGV to MP4, which plays everywhere.

Why the M2V Output Has No Sound

M2V is the video half of an MPEG-2 stream, defined by ITU-T H.262 | ISO/IEC 13818-2, first approved in 1995. That standard specifies a video codec and says nothing about audio at all. A file saved with a plain .m2v extension is an elementary stream: one media type, a sequence of coded MPEG-2 frames, with no container wrapped around it to hold anything in parallel. There is no field, box or track to put a soundtrack in.

In DVD authoring and broadcast workflows that separation is the point rather than a limitation. The video is mastered as .m2v, the audio is mastered as its own file — typically .ac3, .mp2 or LPCM .wav — and the two are muxed together at the authoring stage into a VOB or an MPEG program stream. Tools from that era such as DVDAuthor and TMPGEnc were built around exactly that split. If you need the OGV's audio as a separate file, run a second conversion from the same source with an audio target.

How to Convert OGV to M2V

1. Upload Your OGV File: Drag the .ogv onto the page or click "+ Add Files" to browse. Several files can be queued and each is converted with the same settings.
2. Leave the Video Codec on MPEG-2: MPEG-2 is the value the list opens on and the only one an .m2v file can hold. The list also shows DivX, H.261, H.263, H.263+, H.264, H.265, MJPEG, MPEG-1, MPEG-4 and Xvid — selecting any of them makes the job fail rather than producing a differently-coded file. This is covered in more detail below.
3. Set Video Resolution, and Trim if Needed: Video resolution opens on "Keep original" and also takes Resolution Percentage, Preset Resolutions, Width, Height and Width x Height. On MPEG-2 this is the control that genuinely moves the output, for the reason set out two sections down. Trim takes a Start time and a Duration.
4. Convert and Download: Click Convert and download the silent .m2v. Files upload over an encrypted connection, are converted on our servers and are deleted automatically after a few hours — no sign-up, no watermark, never shared or made public.

The Video Codec List Is Wider Than the Format

This is the one genuine trap on the page, so it is worth stating plainly. An .m2v file is written by a muxer that accepts MPEG-2 video and refuses everything else — including MPEG-1, which sounds like it ought to work and does not. Choose any entry other than MPEG-2 and the encode stops with a header-writing error instead of producing a file.

If you need one of those codecs, you need a different container: OGV to MP4 for H.264 or H.265, OGV to AVI for MPEG-4, Xvid or DivX, OGV to MPEG for an MPEG-1 or MPEG-2 program stream that keeps its audio.

What the File Compression Controls Actually Do

MPEG-2 has no constant-quality mode — the codec predates CRF entirely. Our encoder logs exactly that when a quality-style setting reaches it and substitutes a bitrate derived from the output resolution instead. The consequence is that the two quality modes are inert here and the bitrate modes are floored.

The floor itself is calculated from the output frame size, because MPEG-2 fails outright if asked to encode a large picture at a small bitrate:

So the honest instruction is: choose the frame size you want, leave Quality Preset alone, and do not spend time on Constant Quality expecting it to change anything.

Hitting a DVD-Legal Frame Size

If this .m2v is bound for DVD authoring, the frame size is the thing the authoring tool will check, and there is a trap in how the resolution presets work. Preset Resolutions sets the height only and lets the width follow the source's aspect ratio, so choosing "480p" on a 16:9 OGV gives you an 854x480 frame rather than the 720x480 that DVD-Video specifies. Use Width x Height and type the pair directly.

Frequently Asked Questions

Why does my OGV to M2V file have no audio?

Because .m2v is an MPEG-2 video elementary stream and holds picture only. The format is defined by ITU-T H.262 / ISO/IEC 13818-2, which specifies a video codec with no provision for audio, and a bare elementary stream has no container to hold a parallel track. Your OGV's Vorbis or Opus soundtrack is therefore discarded rather than converted, and no setting on this page changes that. If you want the sound, convert the same .ogv a second time to a separate audio file, or use OGV to MPEG, which wraps video and audio together.

I picked H.264 in the Video Codec list and the conversion failed. Why?

Because an .m2v file is written by a muxer that only accepts MPEG-2 video. The Video Codec list on this page is the same list used across the video converters and is wider than this particular container can hold, so selecting H.264 — or H.265, MPEG-4, Xvid, DivX, MJPEG, H.261, H.263 or even MPEG-1 — produces a header-writing error rather than a file. Leave it on MPEG-2. If a different codec is what you need, the container has to change too: OGV to MP4 for H.264 and H.265, OGV to AVI for the MPEG-4 family.

Should I convert to M2V or to MPEG?

Choose M2V only when an authoring or editing tool has specifically asked you for a raw MPEG-2 video elementary stream. It is silent, it has no index and it is not meant for direct playback. For essentially everything else, OGV to MPEG is the better answer: an MPEG program stream wraps video and audio into one playable file using the same MPEG-2 video coding, so you keep the soundtrack and the result opens in ordinary media players.

Can I play an .m2v file directly?

Often not cleanly. A demuxed elementary stream has no container, no audio and no seek index, so many players either refuse it or scrub badly. VLC and authoring-oriented players will usually open one, and you will hear nothing because there is no audio track to hear. If a watchable file is what you actually wanted, OGV to MP4 is the right target.

Why doesn't the quality setting change the size of my file?

Because MPEG-2 has no constant-quality mode to drive. When a quality-style setting reaches the encoder, the pipeline logs that MPEG-2 does not support a quality mode and substitutes a bitrate derived from the output resolution — so the number you typed into Constant Quality or Constraint Quality is discarded before it ever reaches the codec. Quality Preset and the bitrate modes do influence the target, but all of them are raised to the same resolution-derived floor if they fall beneath it. Change Video resolution if you want the output to move.

What resolution should the M2V be for DVD authoring?

Full D1 is 720x480 for NTSC or 720x576 for PAL, and you should set it under Width x Height rather than using a height preset — Preset Resolutions sets height alone and derives the width from the source aspect, which will not land on a D1 frame. The spec also permits 704x480, 352x480 and 352x240 on NTSC, and their PAL equivalents, if you are deliberately trading resolution for runtime. An off-spec frame size is one of the most common reasons an authoring tool rejects an imported elementary stream.

Will converting from Theora or VP8 to MPEG-2 lose quality?

Yes, and this is one of the less forgiving directions available. MPEG-2 is a 1990s codec, substantially less efficient than either Theora or VP8, so holding the same picture costs it many more bits — and the resolution-derived bitrate floor means the output may well be larger than the .ogv you started with even at a modest frame size. That is inherent to the target rather than a setting you can tune. Keep the original .ogv; a lossy re-encode is not reversible.

Does the frame rate carry across correctly?

The frame rate of the source is preserved, which is worth checking against your destination. DVD-Video defines 29.97 fps for NTSC and 25 fps for PAL, and .ogv files from screen recorders and open-source encoding chains are often at neither — 24, 30, 15 and variable rates are all common in the wild. An authoring tool will reject or silently resample anything off-spec, so if the destination is a disc, conform the frame rate in a desktop encoder before you upload rather than after.

Can I turn the M2V back into a normal video file later?

Yes — it is still a valid MPEG-2 stream, so the M2V converter will move it into a container that players understand. What you cannot get back is the audio, because it was never stored in the .m2v in the first place, so converting out of M2V produces a silent file unless you separately mux in an audio track you exported alongside it. The cleaner route, if you also want something watchable, is a second conversion straight from the original .ogv.

What happens to my files after I convert them?

Your .ogv is uploaded over an encrypted connection, converted on our servers, and both the upload and the finished .m2v are deleted automatically after a few hours. There is no sign-up, no watermark, and nothing is shared or made public. Because MPEG-2 elementary streams are large relative to their picture quality, it is worth trimming to the section you need first — either with the Trim control on this page or with the video cutter, which accepts .ogv directly.