TS to M2TS Converter

How to Convert TS to M2TS Online

1. Upload Your TS File: Drag and drop or click "+ Add Files" to select your .ts transport stream. Batch uploads are supported, so you can queue an entire DVR recording session or a folder of broadcast captures in one go.
2. Pick a Quality Preset: Default is Very High (Recommended), which keeps the source bitrate and resolution. Pick Constant Bitrate for a predictable file size (good for Blu-ray authoring at 20-40 Mbps), Variable Bitrate for better quality at the same average size, Constant Quality (CRF) to lock visual quality, or Constraint Quality to cap the worst-case bitrate.
3. Resize or Trim (Optional): Use Preset Resolutions (4K 2160p, 1080p, 720p, 480p) or set Width x Height manually with aspect ratio locked. Under Trim, switch from "Unchanged" to a Time Range to keep just the segment you need — useful for clipping a single broadcast program out of a long .ts capture.
4. Convert and Download: Click Convert. Files process server-side over a TLS session — no sign-up, no watermark, no quality cap.

Why Convert TS to M2TS?

Both .ts and .m2ts wrap the same MPEG-2 transport stream, but they're built for different jobs. TS (Transport Stream) was designed by MPEG for error-tolerant broadcasting — over-the-air ATSC and DVB, IPTV, and HDHomeRun-style DVR captures. M2TS is the BDAV variant defined by the Blu-ray Disc Association: each 188-byte TS packet is prefixed with a 4-byte header containing a 2-bit copy-permission indicator and a 30-bit arrival timestamp (27 MHz resolution), giving 192-byte packets that random-access players need for seeking and chapter jumps on Blu-ray, AVCHD, and BD-RE/BD-R recordings.

• Author a Blu-ray disc from DVR or capture-card output — Blu-ray authoring tools (TMPGEnc, multiAVCHD, Nero Vision) expect streams in BDMV\STREAM\ named with five-digit numbers like 00001.m2ts. Converting your .ts to .m2ts produces a Blu-ray-compliant 192-byte-packet stream that authoring tools can mux into a disc image directly.
• Feed AVCHD-compatible camcorders, players, and editors — Sony PMB, Panasonic HD Writer, and AVCHD-aware NLEs (Premiere Pro, Vegas Pro, FCP) expect 192-byte packets. Most older Sony Handycam and Panasonic camcorders index AVCHD discs and SD cards by the .m2ts/.MTS extension.
• Add proper timestamp metadata for accurate seeking — Pure .ts streams from a tuner often lack per-packet arrival timestamps. M2TS embeds them, which lets Blu-ray players, PS4/PS5, Xbox, and many TV media players jump to a chapter or fast-forward without losing sync.
• Standardize a mixed library of broadcast captures — If your archive mixes .ts from different tuners and capture cards (some with PCR drift, some without), converting to M2TS normalizes the packet structure so a single playlist or media server reads them all consistently.
• Prepare clips for hardware Blu-ray players and standalone media boxes — Many living-room Blu-ray players (Sony BDP, Panasonic DMP) will recognize .m2ts on a USB stick or BD-R but skip .ts files. Conversion gets your recordings playable on TV without a computer.
• Match the container that NLE timelines and color tools expect for HD ingest — DaVinci Resolve, EDIUS, and Vegas Pro have stronger AVCHD/M2TS import paths than raw .ts.

TS vs M2TS — Format Comparison

Quality Preset Quick Guide

Frequently Asked Questions

What's actually different between a .ts and a .m2ts file?

The video and audio inside can be identical — both are MPEG-2 transport streams. The difference is that M2TS prefixes each 188-byte TS packet with a 4-byte BDAV header (2 bits for copy permission, 30 bits for an arrival timestamp at 27 MHz). The timestamp lets random-access players seek, fast-forward, and jump chapters without losing A/V sync, which is why Blu-ray and AVCHD chose the M2TS variant over raw TS.

Will this re-encode my video or just remux the container?

It always re-encodes — there is no pass-through mode that leaves the original H.264 or MPEG-2 stream untouched while only restructuring packets. Keeping the source codec (no codec change) at the Very High (Recommended) preset produces a fresh encode at the visually-lossless default, so the output stays close to the source in size and hard to tell apart from it, and the packets come out in the 192-byte BDAV form Blu-ray needs. Changing codec, resolution, or bitrate re-encodes at those settings instead.

Can I burn the output to a Blu-ray disc directly?

The .m2ts file is the right stream format, but a playable Blu-ray needs the full BDMV folder structure (BDMV\STREAM\00001.m2ts, plus CLIPINF, PLAYLIST, and INDEX.BDM). Use authoring software like multiAVCHD, TMPGEnc Authoring Works, or Nero Vision to wrap the .m2ts into a compliant disc image, then burn with ImgBurn or your authoring tool. For raw playback on a PS5 or USB-friendly Blu-ray player, copying the .m2ts to a USB stick often works without full authoring.

Why does my Blu-ray player skip .ts files but play .m2ts?

Blu-ray players follow the BDAV spec, which mandates 192-byte packets with arrival timestamps. A raw .ts file with 188-byte packets fails the spec check, so the player ignores it. The conversion to M2TS adds the required header to each packet, and the player will then index and play the file.

What codecs should be inside the M2TS to be Blu-ray compliant?

Blu-ray Disc spec accepts H.264/AVC (most common, recommended), H.262/MPEG-2 Part 2, and SMPTE VC-1 for video. Audio must include at least one of Linear PCM, Dolby Digital (AC-3), or DTS; Dolby TrueHD, DTS-HD Master Audio, and Dolby Digital Plus are optional. AVCHD is stricter — H.264 video only, with AC-3 or LPCM audio. If your TS already contains H.264 + AC-3, keep those codecs so the encode stays in the same family with no cross-codec generation loss.

What's the maximum video bitrate for the M2TS on a Blu-ray?

The Blu-ray spec caps video bitrate at 40 Mbps for the main video stream on a standard BD. Total system bitrate (video + audio + subtitles) is capped at 48 Mbps for BD25 and 54 Mbps for BD50. If your source TS is a high-bitrate broadcast capture, use the Constraint Quality preset to stay under the ceiling.

Is M2TS the same as MTS?

They're the same BDAV format with different file extensions. AVCHD camcorders write .MTS (uppercase) to SD cards because of legacy 8.3 filename constraints; the same files become .m2ts (lowercase) when imported by Sony PMB or Panasonic HD Writer. You can rename one to the other without re-processing the bytes. If your target is an AVCHD-compatible camcorder workflow, see TS to MTS.

Can I go back from M2TS to TS later?

Yes — see M2TS to TS. The reverse conversion strips the 4-byte BDAV header from each packet, giving you a broadcast-style 188-byte TS again. You'd do this if you needed to feed the stream into older broadcast-spec equipment or a tool that doesn't recognize the .m2ts variant.

What if I just want a smaller file, not a Blu-ray-ready one?

For everyday playback or smaller archives, TS to MP4 or TS to MKV gives wider device support and better compression options than M2TS. M2TS is specifically about Blu-ray and AVCHD compliance; pick it only when your target device requires it. If you already have M2TS files and just need them smaller, Compress M2TS trims the bitrate without changing the container.