AV1 to M2TS Converter

Convert AV1 to M2TS Online

Wrap an AV1 video in the M2TS (BDAV MPEG-2 Transport Stream) container used by Blu-ray and AVCHD camcorders. M2TS players and authoring tools don't read AV1, so this is a real re-encode — AV1 is re-encoded into an M2TS-friendly codec (typically H.264). One important catch: for a file that actually conforms to disc specs, you must set the Audio Codec to AC-3 (Dolby Digital) — see the table below for why.

How to Convert AV1 to M2TS

1. Upload Your AV1 File: Drag and drop your .av1 file onto the page or click "+ Add Files." You can queue several clips and convert them with the same settings.
2. Set the Audio Codec to AC-3: Open Advanced Options and, under Audio Codec, choose AC-3 instead of the AAC default — AVCHD and Blu-ray BDAV only accept AC-3 (Dolby Digital) or LPCM, never AAC.
3. Pick a Quality Preset or Resolution (Optional): The Quality Preset defaults to "Very High (Recommended)." Use Preset Resolutions or Width x Height only if you need a specific size — upscaling a standard-definition source won't create real HD detail.
4. Convert and Download: Click "Convert" and download your M2TS file. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours. No sign-up, no watermark.

AV1 vs M2TS — What Changes in the Conversion

Frequently Asked Questions

Will the output M2TS work on a Blu-ray player or AVCHD device?

A bare .m2ts file isn't a finished disc — Blu-ray and AVCHD playback needs the full BDMV/AVCHD folder structure built by authoring software (such as multiAVCHD or tsMuxeR). What you get here is a spec-friendly M2TS stream you can feed into that authoring step. For the stream itself to conform, set H.264 video and AC-3 audio.

Why do I have to change the audio to AC-3?

xconvert's M2TS output commonly defaults audio to AAC, which is convenient for general playback but is not part of the AVCHD or Blu-ray BDAV spec — those formats only allow AC-3 (Dolby Digital) or uncompressed LPCM. If you leave it on AAC, many disc players and authoring tools will reject the file, so switch the Audio Codec to AC-3 before converting.

Does converting AV1 to M2TS reduce quality?

Some quality is lost because AV1 has to be re-encoded into the M2TS video codec (usually H.264) — you can't simply copy AV1 into a transport stream. Keeping the Quality Preset at "Very High" and matching the source resolution minimizes the visible difference, but a re-encode is never bit-for-bit identical to the original.

Can I get true HD if my AV1 file is standard definition?

No. The Preset Resolutions and Width x Height controls can enlarge the frame, but upscaling a 480p or 576p source to 1080p only stretches existing pixels — it does not recover detail that was never recorded. Convert at the source resolution for the cleanest result.

What's the file size limit, and is my file private?

There's no fixed file-count cap; the practical limit on a large clip is upload size and time over your connection. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — never shared or made public, with no sign-up or watermark.

Should I convert AV1 to MP4 instead?

If you only need broad playback on phones, computers, and TVs rather than a physical disc, convert AV1 to MP4 instead — MP4 is far more widely supported and keeps AV1 or H.264 with AAC without the BDAV constraints. Choose M2TS only when you specifically need a Blu-ray/AVCHD-style stream. To go the other way, see convert M2TS to MP4.