CONVERT
MTS → WMV
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Fast, secure MTS to WMV conversion. No registration required.
Setup: MTS is the AVCHD camcorder variant of the MPEG transport stream. Goal: an interchangeable WMV. Repackaging a MTS file into WMV is one of the fastest video jobs there is. When the codecs already match the target container specification, the bytes are literally copied across — no re-encoding, no quality drop, no long wait. Upload above and watch the progress bar usually fly. Context: MTS is the AVCHD camcorder variant of the MPEG transport stream. WMV is Microsoft's Windows Media Video codec and container, tied to the Windows ecosystem.
AVCHD Video
Source formatMTS (AVCHD) is a high-definition video format from Sony and Panasonic camcorders.
Windows Media Video
Target formatWMV is a Microsoft proprietary video format from the Windows Media framework. It was common in the early 2000s and still appears in corporate and legacy environments.
Why convert MTS to WMV
Windows Media Video is better supported than AVCHD Video across web uploads, social networks and consumer devices. Converting trades the niche advantages of MTS for broad playback and fewer "file type not supported" messages. Stream copy (when codecs match) keeps the video bit-identical to the source.
HOW TO CONVERT
MTS → WMV
Upload the MTS
Drop your MTS onto the uploader. Files up to 25 MB run on the free tier without registration; paid plans go up to 2 GB.
Stream-copy or re-encode
FFmpeg probes the codecs; if compatible, it stream-copies (no quality loss). Otherwise it transcodes at matching bitrate.
Download the WMV
Fetch the converted WMV as soon as it is ready. Both files auto-delete within two hours.
Common Use Cases
Share across platforms
Send WMV files to anyone without worrying about whether they have the right software for MTS.
Embed in documents
Drop WMV output into Word, Google Docs, PowerPoint, Notion or a website without conversion warnings.
Optimize size
WMV often produces smaller files than MTS for web, email and storage.
Archive & future-proof
Store in a widely-supported format that will still open on future operating systems without legacy plugins.
MTS vs WMV — Strengths and limitations
What each format does best, and where it falls short.
MTS Strengths
- Native format for every AVCHD camcorder since 2006.
- H.264 compression — small files for high-def quality.
- Direct compatibility with iMovie, Premiere, Resolve, Final Cut.
- Carries Dolby Digital 5.1 audio on flagship camcorders.
Limitations
- Slow to decode — editors typically transcode for editing.
- Proprietary folder-structure conventions complicate direct import.
- Largely legacy as smartphones replaced dedicated camcorders.
WMV Strengths
- Good quality-to-bitrate ratio for its era (early 2000s).
- Native Windows playback since 1999.
- Single-vendor tooling reliable inside the Microsoft ecosystem.
- VC-1 variant was Blu-ray certified.
Limitations
- Proprietary — poor Mac and Linux support.
- DRM variants broke the "owned content" promise when license servers retired.
- Overtaken by H.264/HEVC — no meaningful modern deployment.
MTS vs WMV — Technical specifications
Side-by-side comparison of the technical details.
MTS
- MIME type
- video/mp2t
- Extension
- .mts
- Container
- BDAV MPEG-2 Transport Stream (192-byte packets)
- Video codecs
- H.264 (AVCHD Main/High Profile)
- Audio codecs
- AC-3 (Dolby Digital), LPCM
WMV
- MIME type
- video/x-ms-wmv
- Extension
- .wmv
- Container
- ASF (Advanced Systems Format)
- Codecs
- WMV 7/8/9, VC-1
- Audio
- WMA (usually)
| Specification | MTS | WMV |
|---|---|---|
| MIME type | video/mp2t | video/x-ms-wmv |
| Extension | .mts | .wmv |
| Container | BDAV MPEG-2 Transport Stream (192-byte packets) | ASF (Advanced Systems Format) |
| Video codecs | H.264 (AVCHD Main/High Profile) | — |
| Audio codecs | AC-3 (Dolby Digital), LPCM | — |
| Codecs | — | WMV 7/8/9, VC-1 |
| Audio | — | WMA (usually) |
MTS vs WMV — Typical file sizes
Approximate file sizes for common scenarios.
MTS
- 1 min HD AVCHD (17 Mbps) ~130 MB
- 1 hour AVCHD Full HD ~8 GB
WMV
- 10-min clip (2 Mbps) 150 MB
- 45-min episode (3 Mbps) 1 GB
- 2-hour HD movie (VC-1) 4-8 GB
Quality & Compatibility
Stream-copy is bit-perfect: when the codecs inside MTS match what WMV can carry, the frames are copied across without re-encoding and the output is visually identical to the source. When transcoding is required, we target CRF 20–23 H.264 — visually transparent for most content — and keep audio bitrate at 192 kbps AAC.
Tips for Best Results
- Stream-copy beats re-encoding by orders of magnitude — check if your MTS already uses WMV-compatible codecs before picking Advanced settings.
- For social uploads, 1080p at 30 fps strikes the best quality-to-size ratio; 4K is often downscaled server-side anyway.
- Keep the MTS if you plan further editing — transcoded WMV is fine for final delivery but not for intermediate edits.
Frequently Asked Questions
Only when it has to. If the codecs inside MTS (usually H.264 or H.265 for video, AAC for audio) are accepted by WMV, we stream-copy — the bytes are repackaged into the new container with zero re-encoding and no quality loss. When the source uses a codec the target does not support, we transcode at a matching bitrate to keep the visual quality close to the original.
With stream copy, expect the job to finish in seconds to tens of seconds regardless of video length — the work is mostly rewriting the container. Transcoding is slower (roughly real-time: a ten-minute clip takes about ten minutes) because every frame must be decoded and re-encoded. The progress bar shows which mode applies.
Yes. Resolution, frame rate, colour space and bit depth are preserved by default; stream copy is literally bit-identical on these parameters. If you explicitly pick a lower bitrate or a different codec in Advanced, the output is rebuilt to those settings, but the default is always "match the source".
Related comparisons
See these formats side by side to understand which fits your use case best.
Related Guides
WMV Format: Windows Media Video Explained — Codecs, DRM & Conversion
Everything about WMV files: how Windows Media Video works, ASF container, DRM protection, WMV versions (VC-1), and how to convert WMV to MP4 or AVI.
Read guideWMV Format: Windows Media Video — Complete Guide and Conversion
What is WMV (Windows Media Video), when it is still used, how to play WMV on Mac and Linux, and how to convert WMV to MP4 or MKV.
Read guideSecure & Private Conversion
Your files are encrypted during transfer, processed in isolated containers, and automatically deleted within 60 minutes. We never read, share, or store your data.