MPEG to MTS Converter

MPEG vs MTS — Which Should You Convert To?

If you have an .mpeg (or .mpg — same MPEG Program Stream, just a longer spelling) and you are wondering whether MTS is the right target, the short answer is: only convert to MTS when a specific AVCHD tool demands it. MTS is the camcorder spelling of the AVCHD transport stream, built around H.264; MPEG is an older MPEG-1/MPEG-2 stream. For phones, browsers, and modern editors, MTS is the wrong target and MPEG to MP4 is the universal pick. Convert to MTS for AVCHD editing and disc-authoring workflows only.

Side-by-side Comparison

When to Pick MPEG

• You ripped a DVD or VCD and want a single, widely compatible file — MPEG-2 plays on virtually every desktop player and standalone DVD player.
• You captured standard-definition digital TV and want to keep the original codec without a second re-encode.
• Your editor or hardware is old enough that it predates H.264 and only understands MPEG-1/MPEG-2.
• You do not have an AVCHD workflow at all — in which case MTS gives you nothing, and you should stay on MPEG (or move to MP4).

When to Pick MTS

• You need to drop a legacy clip onto an AVCHD project timeline next to real camcorder footage in an editor like Sony Vegas, PlayMemories Home, or a Panasonic HD Writer build.
• Your Blu-ray or AVCHD disc-authoring tool (for example tsMuxeR or multiAVCHD) auto-detects footage only when it is an H.264 transport stream with the .mts extension.
• A specific AVCHD-era hardware player expects the transport-stream layout that MTS provides.
• For anything outside that AVCHD niche — social uploads, phones, browsers, current editors — pick MPEG to MP4 instead; it is smaller and far more compatible.

How to Convert MPEG to MTS

1. Upload Your MPEG File: Drag and drop your .mpeg or .mpg file onto the page, or click "+ Add Files" to browse. Both spellings are accepted, and batch upload lets you queue several ripped segments and convert them with the same settings.
2. Pick Quality Preset or Bitrate Mode: Video Codec defaults to H.264, the only codec AVCHD accepts for MTS. Leave Preset on "Very High (Recommended)", or switch File Compression to Constant Bitrate / Variable Bitrate to target a bitrate, or Constant Quality / Constraint Quality for a fixed perceptual quality.
3. Resolution and Trim (Optional): Under Video resolution choose "Keep original", a Preset Resolution, Resolution Percentage, or custom Width x Height; keeping the source size avoids upscaling. Use Trim → Time Range to cut one segment from a long capture.
4. Convert and Download: Click "Convert" and save your .mts file. No sign-up, no watermark.

Frequently Asked Questions

Is .mpeg the same as .mpg for this conversion?

Yes. .mpeg and .mpg are two spellings of the same MPEG Program Stream — the four-letter version is just the older DOS-era three-letter name written out in full. This tool accepts both, treats them identically, and produces the same .mts output either way. If you have a mix of .mpg and .mpeg files, you can upload them together in one batch.

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

No — and that is an honest limit, not a tool flaw. MPEG 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 discarded. A standard-definition DVD or VCD source stays standard-definition; selecting a 1080p preset enlarges the frame but invents no new detail. The benefit is AVCHD-tool compatibility, not a sharper picture — so pick a generous bitrate (Constant Quality around CRF 18-20) to keep the H.264 step from adding further visible loss.

Is MTS actually better than MPEG, or just newer?

Neither is universally better — they serve different jobs. MTS uses H.264, which compresses far more efficiently than MPEG-2 at the same quality, and it carries up to 1080p, which MPEG rips usually do not. But MTS only earns its keep inside an AVCHD workflow; outside it, MPEG-2 is more broadly playable and MP4 is smaller and more compatible than either. "Newer codec" does not mean "right format" unless your editor or disc tool specifically wants the transport stream.

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 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 (18 Mbps when written to DVD media); the later AVCHD Progressive line raised the ceiling to 28 Mbps. For a typical MPEG source that was 720x576 or 720x480 there is no reason to push toward that ceiling — match the source detail instead. 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 carry over, 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 Audio Codec to AC3 under Advanced Options. In our testing, a 720x480 DVD-rip MPEG re-encoded with AC3 audio imported into an AVCHD authoring template without a conform step, whereas an AAC-audio version sometimes prompted one first. Multi-track audio is reduced to the primary track, since AVCHD's standard profile expects a single stream per clip.

Do you have the reverse, and a twin for the .mpg spelling?

Yes to both. If your file is already an AVCHD clip and you want a widely playable MPEG instead, use MTS to MPG for the reverse direction. If your source is named with the shorter .mpg extension, the MPG to MTS page covers the identical conversion — the streams and the output are the same, so either page works for either spelling.

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.