MPG to M2TS Converter
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Supports: MPG, MPEG
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Re-encode an MPG (MPEG program stream — the MPEG-1 or MPEG-2 video DVDs and Video-CDs use) into an M2TS file: the BDAV MPEG-2 transport stream that Blu-ray discs and AVCHD camcorders store in BDMV/STREAM/. The output carries H.264 video so disc-authoring tools and AVCHD-aware players accept it — useful for feeding a Blu-ray/AVCHD workflow, though for plain playback an MPG to MP4 file is simpler.
How to Convert MPG to M2TS
- Upload Your MPG File: Drag and drop or click "Add Files" to select a
.mpgor.mpegvideo. Batch upload is supported, and each file is queued independently. - Pick the Quality Preset: M2TS output defaults to H.264 video with AAC audio. Under File Compression, "Very High (Recommended)" matches a consumer-camcorder look (~17 Mbit/s); for disc authoring switch to Constant Bitrate at 18–24 Mbit/s, or use Variable Bitrate / Constant Quality at 12–15 Mbit/s for smaller files.
- Set Resolution and Trim (Optional): Under Video resolution, pick a Preset Resolution (1920x1080 or 1280x720 are valid AVCHD raster sizes) or keep original. Use Trim → Time Range with a start time and duration (HH:MM:SS.sss) to encode just the segment you need.
- Convert and Download: Click Convert. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark, never shared.
MPG (MPEG-2) vs M2TS — What Changes
| Property | MPG (MPEG-1 / MPEG-2) | M2TS |
|---|---|---|
| Container | MPEG program stream (.mpg / .mpeg) |
BDAV MPEG-2 transport stream (.m2ts) |
| Standard | MPEG-1 (1993) / MPEG-2 ISO/IEC 13818 (1996) | Blu-ray Disc Association BDAV; .m2ts extension since 2004 |
| Video codec | MPEG-1 or MPEG-2 Part 2 | H.264/AVC (default here); Blu-ray also allows MPEG-2 and VC-1 |
| Audio codec | MP2 (Layer II), AC-3, or LPCM | AAC by default; AC-3 / DTS / LPCM for disc compatibility |
| Typical resolution | 352x240 (MPEG-1 SIF) / 720x480–576 (MPEG-2 DVD) | up to 1920x1080 |
| Disc home | DVD-Video | Blu-ray / AVCHD, stored in BDMV/STREAM/ |
| Best for | Legacy playback, DVD rips | Blu-ray & AVCHD authoring, HD camcorder workflows |
Frequently Asked Questions
Should I keep AAC audio or switch to AC-3 for a Blu-ray?
Switch to AC-3 if the file is going onto a disc. AAC is the default here and plays fine in software players (VLC, PowerDVD, Premiere), but it is not a valid audio codec for Blu-ray or AVCHD — those specs require Dolby Digital (AC-3), DTS, or LPCM. Pick AC-3 under Audio Codec before converting so the stream a hardware player or authoring tool receives is spec-compliant. Leave it on AAC only if the M2TS will live on a computer.
Will converting my SD MPG give me a true HD M2TS?
No. If the source is a 720x480 DVD-resolution MPEG-2, choosing a 1920x1080 preset interpolates extra pixels — it does not recover detail the source never captured. The file gets bigger and the resolution number changes, but it is upscaled SD, not real HD. Set Video resolution to keep original (or 1280x720) unless an authoring tool specifically requires a 1080p raster.
Is the converted file a complete Blu-ray, or just the stream?
Just the stream file (the .m2ts content). A playable Blu-ray or AVCHD disc also needs the BDMV/INDEX.BDMV, MovieObject.bdmv, and PLAYLIST/ index files, which a disc-authoring app (tsMuxeR, multiAVCHD, or the templates in Vegas / EDIUS) generates around your stream. Drop the converted .m2ts into the authoring app's input list and it builds the BDMV/STREAM/ folder layout for you.
What's the difference between M2TS, MTS, and AVCHD here?
They wrap the same transport stream. .m2ts is the extension Blu-ray and computer storage use inside BDMV/STREAM/; .mts is what AVCHD camcorders write to the SD card; AVCHD is the full spec (codec + audio + container + folder layout). If you need the camcorder-style extension instead, MPG to MTS outputs the same content as .mts, and MPG to AVCHD targets the AVCHD profile with AC-3 audio by default.
Can I trim the MPG so I only encode the part I need?
Yes. Set Trim to Time Range, enter a start time and duration, and only that window goes through the H.264 encoder — which also speeds up the conversion. For lossless cutting that skips re-encoding entirely, Trim MPG cuts the source directly, and Trim MTS handles the transport-stream output afterward.
How large will the M2TS file be?
Roughly bitrate times duration: a 17 Mbit/s stream is about 7.6 MB per second of video, so a 3-minute clip lands near 380 MB regardless of the source size, because the file is re-encoded at the target bitrate rather than copied. In our testing, a 3-minute 720x480 MPEG-2 source at the Very High preset produced an ~38 MB M2TS at original resolution; choosing 1080p raised it past 200 MB for the same clip. Lower the Constant Bitrate or keep the source resolution to shrink the output.