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Supports: MTS
Typing "MPEG-2" by name usually means you have a specific target in mind: a standard DVD, a broadcast or institutional system, or playback hardware that predates H.264. MTS is the AVCHD transport stream your Sony or Panasonic camcorder records — H.264 video at up to 1920x1080. MPEG-2 (ISO/IEC 13818, from the mid-1990s) is the older standard those legacy systems expect. The short version: if you are authoring a DVD or feeding an MPEG-2-only device, convert; if you just want footage that plays everywhere, MTS-to-MP4 keeps your quality and is the better choice.
| Property | MTS (AVCHD) | MPEG-2 |
|---|---|---|
| Video codec | H.264 / AVC | MPEG-2 Part 2 (H.262) |
| Standard | AVCHD spec (Sony / Panasonic) | ISO/IEC 13818 |
| Introduced | 2006 | 1995 |
| Container | MPEG-2 Transport Stream | MPEG Program Stream |
| Typical resolution | 1080i / 1080p, 720p | SD for DVD (720x480 / 720x576); HD elsewhere |
| Audio | AC-3 (Dolby Digital) or LPCM | AC-3, MP2, LPCM, DTS (per DVD spec) |
| Coding efficiency | Higher — ~50% less bitrate for same quality | Lower — needs more bitrate for the same quality |
| Best for | Camcorder capture, editing, archiving HD | DVD authoring, broadcast / institutional MPEG-2 systems |
.MTS clip onto the page, or click "Add Files" to browse. You can queue several clips and they convert with the same settings.For a DVD it is the only option, not just the better one — DVD-Video stores video as MPEG-2, so a DVD-authoring program will not accept the H.264 inside an MTS file directly. For any non-DVD purpose, MTS (H.264) is the more efficient and more widely playable format, so "better" depends entirely on whether a DVD or MPEG-2-only system is your target.
Some loss is unavoidable because you are re-encoding from efficient H.264 into less-efficient MPEG-2 — MPEG-2 needs roughly twice the bitrate to match the same picture. At a high enough bitrate the result can look very close to the source. If you also downscale to DVD resolution, the drop from 1080p to 720x480 or 720x576 is part of the format change, not an encoder fault.
DVD-Video caps video at 9.8 Mbit/s and the combined audio-plus-video stream at 10.08 Mbit/s. In practice a video bitrate in the rough 4-8 Mbit/s range keeps standard-definition MPEG-2 looking clean while leaving room for audio; push higher only if a short clip needs maximum fidelity. Set Constant Bitrate or a generous Variable Bitrate under File Compression.
Yes. AVCHD records AC-3 (Dolby Digital), and AC-3 is allowed by the DVD-Video spec at up to 448 kbit/s, so choosing AC3 under Audio Codec keeps DVD-compatible audio. MP2 (MPEG-1 Audio Layer II) is the alternative for the broadest legacy compatibility.
DVD-Video is standard definition only: 720x480 at 29.97 fps for NTSC, or 720x576 at 25 fps for PAL. Set Video resolution to one of those Preset Resolutions before converting, otherwise DVD-authoring software will reject a full-HD MPEG-2 file.
They produce the same MPEG-2 video — MTS to MPG and MTS to MPEG just write the more common .mpg / .mpeg file extensions, while this page writes .mpeg2. Pick whichever extension your DVD-authoring tool or target device asks for. To go the other way, MPEG-2 to MTS re-wraps MPEG-2 back into an AVCHD-style stream.
Your MTS is uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion. In our testing, a 2-minute 1080i MTS clip re-encoded to DVD-resolution MPEG-2 produced a roughly 60-90 MB file depending on the bitrate chosen. Files are never shared or made public, and there is no sign-up or watermark.