H264 vs MTS — Comparison & Free Converter
Fast, instant H.264 RAW to MTS conversion. No signup required. Just drop your .h264 file and get .mts in seconds.
Batch Settings
お気に入りのアニメやドラマ、大切なビジネス会議の記録など、日々の動画コンテンツは私たちの生活に深く根ざしていますね。しかし、異なるデバイスやソフトウェアでそれらを再生しようとすると、「ファイル形式が対応していません」という表示に悩まされることは少なくありません。特に、高画質な映像を扱う際、H.264形式とMTS形式の間で変換が必要となる場面は多々あります。このページでは、お手持ちのH.264ファイルを、AVCHDカメラなどでよく使われるMTS形式へ、あるいはその逆へとスムーズに変換する方法を詳しくご紹介いたします。画質の劣化を最小限に抑えつつ、簡単かつ迅速に変換できるツールや手順を解説しますので、動画編集の効率化や、より幅広い視聴環境の構築にお役立てください。縦書きの字幕を考慮した変換や、高精細な映像美を損なわないための設定についても触れていきます。
- アニメイベントの記録を編集
- ビジネスプレゼン資料の共有
- 家族旅行の思い出を親戚と共有
日本の映像制作現場では、AVCHDカメラが広く利用されているため、MTS形式の動画ファイルを扱う機会が多く、H.264との相互変換は日常的に発生します。特に、動画に日本語の縦書き字幕を付与する際、変換後のファイルで文字化けやレイアウト崩れが発生しないよう、対応するコーデックや設定の確認が重要になります。
About H.264 RAW to MTS Conversion
H264 or MTS — which format should you use? The answer depends on your needs. Here's a quick breakdown.
H264 is a widely used file format. It has common platform support. MTS (AVCHD) is the format from camcorders recording in high-definition AVCHD. It has limited platform support.
So when should you convert H264 to MTS? This conversion is ideal when you When you need a MTS file. This conversion helps you convert between formats quickly.
Converting H264 to MTS maintains high quality with CocoConvert's optimised encoder settings.
If you've decided MTS is the right choice, CocoConvert makes the conversion effortless. Upload your .h264 file, pick MTS, and click Convert — done in seconds. The converter runs on secure servers in Germany, powered by FFmpeg, Sharp, and qpdf. Files are encrypted via TLS and erased within 24 hours.
Free tier: 5 files/hour, 250 MB each. Pro: 100 files/hour, 5 GB each. Works in every modern browser on desktop and mobile.
How to Convert H.264 RAW to MTS
- 1
Choose your H264 file
Upload your .h264 file using drag-and-drop or the file browser. Batch mode lets you add multiple files.
- 2
Set format to MTS
Select .mts from the output options. The converter applies optimal quality settings automatically.
- 3
Run the conversion
Click Convert. Server-side processing means your device stays fast — even for large video files.
- 4
Get your MTS file
Download your converted file instantly. Batch downloads are available as a zip archive.
What Happens When You Convert H.264 RAW to MTS
Your H264 file is decoded and re-encoded as MTS.
Your H264 file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in MTS format
The converted file is ready for download
Format Comparison
H.264 Raw
.h264 file
| Extension | .h264 |
| MIME Type | video/h264 |
| Category | Video |
MTS
.mts file
| Extension | .mts |
| MIME Type | video/mp2t |
| Category | Video |
Should You Convert H.264 RAW to MTS?
When to Convert
- ✓When you need a MTS file
Frequently Asked Questions
Should I use H264 or MTS?
It depends on your goal. H264 preserves full quality. MTS offers smaller files via lossy compression. Choose based on whether file size or quality matters more for your use case.
Is MTS higher quality than H264?
Not necessarily. Converting H264 to MTS maintains high quality with CocoConvert's optimised encoder settings. Quality depends on the compression type and settings, not just the format name.
Can I convert H264 to MTS on Mac and Windows?
Yes. CocoConvert is a web-based tool that works in all modern browsers — Chrome, Safari, Firefox, Edge — on any operating system including macOS, Windows, Linux, iOS, and Android.
Is CocoConvert free for H264 to MTS?
Yes. Free users get 5 conversions per hour (250 MB each). Pro subscribers unlock 100 files per hour, 5 GB per file, and priority processing.
What tools does CocoConvert use for H264 to MTS?
CocoConvert uses FFmpeg for audio/video, Sharp for images, and qpdf for documents — the same open-source libraries used by Netflix, YouTube, and major enterprise platforms.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.