M2TS to WMV Converter

M2TS to WMV Converter

M2TS is the BDAV MPEG-2 transport stream that Blu-ray discs and AVCHD camcorders (Sony, Panasonic, Canon) write, carrying efficient H.264/AVC video. WMV is Microsoft's Windows Media Video, an older format built around the ASF container. This converter re-encodes your camcorder or Blu-ray footage into a .wmv file for Windows-Media tooling. One honest caveat up front: M2TS already uses H.264, and WMV's default codec is an older, less efficient generation — so this conversion trades coding efficiency for Windows compatibility. If you just want footage that plays everywhere, M2TS to MP4 keeps the efficient H.264 stream and is the better default.

M2TS Format at a Glance

WMV Format at a Glance

How to Convert M2TS to WMV

1. Upload Your M2TS File: Drag and drop your .m2ts (or .mts) clip from your camcorder's BDMV/STREAM folder, or click "+ Add Files" to browse. Batch upload is supported, so you can queue several clips from the same shoot and convert them with the same settings.
2. Pick Quality Preset or Bitrate Mode: The Video Codec defaults to WMV 2 (Windows Media Video 8) and the audio to WMA v2 — the standard pairing inside a .wmv file. Leave Preset on "Very High (Recommended)", or under File Compression switch to Constant Bitrate, Variable Bitrate, Constant Quality, or a Specific file size to cap the output.
3. Resolution and Trim (Optional): Under Video resolution choose Keep original, a Preset Resolution, a Resolution Percentage, or a custom Width × Height. Use Trim → Time Range to cut one segment out of a long take in the same pass.
4. Convert and Download: Click "Convert" and save your .wmv file. No sign-up, no watermark.

Frequently Asked Questions

Should I convert M2TS to WMV at all, or to MP4 instead?

For almost every modern use, choose MP4. M2TS already stores efficient H.264 video; WMV's default codec is Windows Media Video 8, an older generation that is less efficient and barely plays outside Windows. Re-encoding to WMV buys Windows-Media compatibility at the cost of coding efficiency, so the file often needs more bits to look the same. Convert to WMV only when a specific Windows-Media workflow demands it — legacy Windows Media Player or Movie Maker, an old PowerPoint that embeds .wmv, or a Windows-only tool. If you just want footage that plays everywhere and stays small, use M2TS to MP4.

Will I lose quality going from M2TS to WMV?

Some, yes — and it is unavoidable, not a tool flaw. M2TS already stores lossy H.264 video, and re-encoding it to Windows Media Video 8 is a second lossy pass to an older, less efficient codec, so no detail is regained and the picture can only soften. The resolution stays HD if you keep it (a 1920×1080 source stays 1080), but WMV 2 generally needs more bits than H.264 to hold the same quality. Leave the resolution on Keep original and use a high preset so the re-encode adds as little loss as possible.

Which WMV codec and audio does the output use?

The video defaults to WMV 2 — the FourCC for Windows Media Video 8 — and the audio to WMA v2, the standard pairing inside a .wmv file, which is itself an ASF (Advanced Systems Format) container. You can switch the video to WMV 1 (Windows Media Video 7) under Video Codec if an older target requires it. These are distinct from Windows Media Video 9, which Microsoft submitted to SMPTE and which was standardized in March 2006 as SMPTE 421M, better known as VC-1.

What happens to my M2TS file's AC-3 or PCM audio in a WMV?

It is re-encoded. AVCHD camcorders record Dolby Digital (AC-3, stereo or 5.1) or linear PCM, but a WMV file normally carries Windows Media Audio, so the track is converted to WMA v2 by default. That re-encode is lossy and a 5.1 mix is folded down toward stereo, so pick a generous preset to keep the result clean. If keeping multichannel or the original AC-3 matters, an MP4 via M2TS to MP4 can retain AC-3 directly.

Why won't my phone or browser play the WMV I created?

That is expected. WMV is a Windows-Media format with poor native support outside Windows — phones, browsers, smart TVs, and social platforms generally won't play .wmv without extra software. On the desktop, VLC plays WMV everywhere without installing codecs. If you need playback beyond Windows, the M2TS footage should go to MP4 instead, which every major browser and device supports natively.

My file is named .MTS, not .m2ts — is this the right converter?

Yes, the payload is identical. Camcorders write .MTS because their card filesystem uses short 8.3 names, while Blu-ray discs and import tools use the long .m2ts name; both are the same BDAV transport stream and convert the same way. In our testing, a 1080i AVCHD clip converted at the "Very High" preset opened in both Windows Media Player and VLC without a separate codec download. If your file is specifically named .MTS, the dedicated MTS to WMV converter handles it identically.

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

Your file is uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after the conversion — no sign-up, no watermark, never shared or made public.