MPG to MTS Converter

Convert MPG to MTS: What This Tutorial Covers

This walks through turning an old .mpg or .mpeg clip — a VCD rip, a DVD extract, or a digital-TV capture — into an .mts file, the camcorder spelling of the AVCHD transport stream. It is aimed at anyone who needs MPEG-1/MPEG-2 footage to drop into an AVCHD-era editor, disc-authoring tool, or hardware player that only ingests .mts H.264 streams. Be clear up front: for phones, browsers, and modern editors this is the wrong target — MPG to MP4 is the universal pick, and most people who land here actually want the reverse MTS to MPG. Convert to MTS only when a specific AVCHD workflow demands it.

How to Convert MPG to MTS

1. Upload Your MPG File: Drag and drop your .mpg or .mpeg file onto the page, or click "+ Add Files" to browse. Batch upload is supported, so you can queue several ripped VCD or DVD segments at once and convert them with the same settings.
2. Pick Quality Preset or Bitrate Mode: The video codec defaults to H.264, the only codec the AVCHD spec accepts for MTS. Leave Quality Preset on "Very High (Recommended)", or switch File Compression to Constant Bitrate / Variable Bitrate to target a specific bitrate, or Constant Quality / Constraint Quality (CRF) for a fixed perceptual quality — see the walk-through below.
3. Resolution and Trim (Optional): Under Video resolution, choose "Keep original", a Preset Resolution (1080p, 720p, 480p), Resolution Percentage, or custom Width x Height. Use Trim → Time Range to cut a single segment out of a long capture in the same pass.
4. Convert and Download: Click "Convert" and save your .mts file. No sign-up, no watermark.

Walk-through: Bitrate and the Re-encode You Can't Avoid

Going from MPG to MTS is always a full re-encode, never a remux. MPG holds MPEG-1 (ISO/IEC 11172, 1993) or MPEG-2 (ISO/IEC 13818, 1995) video; AVCHD requires H.264/MPEG-4 AVC. Those are different codecs, so the MPEG-2 picture is decoded and re-compressed to H.264 from scratch. That means no quality is regained — H.264 cannot add back detail the MPEG-2 step already discarded — and an old standard-definition source stays standard-definition. Upscaling a 720x480 DVD rip to a 1080p preset enlarges the frame but invents no new detail.

The single rule that protects you: give the H.264 step enough bits that it isn't the bottleneck.

• For a DVD-bitrate MPEG-2 source (roughly 4-9 Mbps), Constant Quality at CRF 18-20 holds the picture with no visible second-generation loss.
• If your downstream tool enforces an AVCHD bitrate ceiling, use Constraint Quality or Constant Bitrate. AVCHD 1.0 caps 1080p at 24 Mbps; consumer Sony/Panasonic cameras record around 17 Mbps ("FH") to 24 Mbps ("FX"/"PS").
• Keep the source resolution rather than upscaling — a 480p DVD rip looks better left at 480p than blown up to 1080p.
• The audio defaults to AAC; for the most AVCHD-faithful output pick AC-3, which is the codec AVCHD camcorders actually record.

Common Errors and How to Fix Them

• "AVCHD editor refuses the .mts file" — the most likely cause is a non-compliant H.264 profile or resolution. Keep the codec on H.264, the resolution at 1080p or below, and the audio on AC-3 so the stream matches what AVCHD tools validate.
• "Output looks soft or blocky after upscaling" — you scaled an SD source up to 1080p. Set Video resolution to "Keep original"; enlarging adds pixels, not detail.
• "File is much larger than the original MPG" — expected at a high preset and a high resolution. Lower the bitrate with Variable Bitrate, or pick a lower CRF target, if size matters more than maximum fidelity.
• "Converted clip plays but has no sound" — the source MPG had no audio track, or its MP2/AC-3 stream failed to decode. Confirm the original actually has audio before converting.
• "My player won't open the .mts file" — most general media players prefer MP4. VLC plays MTS on every desktop; if you only need cross-platform playback rather than AVCHD import, an MP4 is the friendlier target.

When This Doesn't Work

If the MPG is copy-protected, corrupted, or only partially downloaded, the video stream may not decode cleanly and the conversion will fail or come out broken — re-rip from the source disc rather than fight a bad file. Note also that what you download is a bare transport stream, not a camcorder card folder: it imports into AVCHD-aware editors and authoring tools (such as tsMuxeR or multiAVCHD) that build the surrounding BDMV structure for you, but copying it onto an SD card alone will not reproduce a browsable AVCHD volume a camera or set-top player can navigate. And if your real goal is a small, widely playable file rather than AVCHD compatibility, MTS is the wrong target — use MPG to MP4.

Frequently Asked Questions

Why would I convert MPG into a camcorder format at all?

Only for an AVCHD workflow. Some older non-linear editors (Sony Vegas, PlayMemories Home, certain Panasonic HD Writer builds) and Blu-ray/AVCHD disc-authoring tools auto-detect footage only when it is an H.264 transport stream with the .mts extension. Wrapping a legacy MPEG clip as MTS lets you drop it onto an AVCHD project timeline alongside camcorder footage. For any modern use — phones, browsers, social uploads, current editors — MPG to MP4 is smaller and far more compatible, and most people who searched for this actually want the reverse MTS to MPG.

Will converting MPG to MTS improve the quality or make it HD?

No — and that is an honest limit, not a tool flaw. MPG to MTS is a lossy-to-lossy re-encode from MPEG-1/MPEG-2 to H.264, so it cannot regain detail the original codec already threw away. A standard-definition DVD or VCD source stays standard-definition; selecting a 1080p preset upscales the frame but invents no new detail. The benefit is compatibility with AVCHD tools, not a sharper picture. Pick a generous bitrate (CRF 18-20) so the H.264 step adds no further visible loss.

What's the difference between .mts and .m2ts, and which do I get?

They are the same AVCHD transport stream with two spellings. Camcorders write .mts directly to the SD card; the identical stream is renamed .m2ts once it is imported to a PC or onto a Blu-ray disc. This tool outputs .mts, which is what most AVCHD editors auto-detect first. If your downstream tool specifically expects .m2ts, rename the file after download — the bytes are identical, no re-encoding needed.

Does MTS support Full HD, and what's the bitrate ceiling?

Yes. AVCHD 1.0 supports up to 1920x1080 and caps the video bitrate at 24 Mbps; the later AVCHD Progressive ("AVCHD 2.0") line added higher resolutions. For a typical MPG source that was 720x576 or 720x480, there is no reason to push toward that ceiling — match the source detail level instead. The resolution preset list here goes well beyond 1080p, but strict AVCHD 1.0 devices only recognize up to 1080p, so downscale to 1080p if you are targeting an older camcorder PC suite.

Will the audio survive, and what codec should it use?

Yes, the primary audio track is kept. The output defaults to AAC, but AVCHD camcorders record Dolby AC-3, so for the most AVCHD-faithful file switch the audio codec to AC-3 under Advanced Options. In our testing, a 720x480 DVD-rip MPG re-encoded at CRF 18 with AC-3 audio imported into an AVCHD authoring template without a re-transcode, whereas an AAC-audio version sometimes prompted a conform step first. Multi-track audio is reduced to the primary track, since AVCHD's standard profile expects a single stream per clip.

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.