Trim MPEG2

How to Trim MPEG-2 Video Online

1. Upload Your MPEG-2 File: Drag and drop or click "Add Files" to select .mpg, .mpeg, or .m2v MPEG-2 video. DVD rips, ATSC / DVB broadcast captures, camcorder recordings, and legacy MPEG-2 program streams all work. Batch is supported — drop in a full season of broadcast captures or a folder of DVD VOB clips renamed to .mpg.
2. Set Start Time and Duration: Under "Trim," enter a start time (default 0) and a duration (default 10 seconds). Both fields accept plain seconds (12.5) or HH:MM:SS.sss (00:01:30.250). The clip ends at start + duration, so a 30-second mid-show segment is start 00:05:00, duration 30.
3. Pick Quality Preset (Optional): Quality Preset runs Highest → Lowest with Very High as the default. Higher presets keep the original 4-9 Mbps DVD-Video bitrate range; lower presets re-encode at smaller bitrates to save space when you only need a reference clip.
4. Resize and Trim (Optional): Keep the original 720x480 (NTSC) or 720x576 (PAL) DVD resolution, pick a fixed preset (144p-4320p), or scale by percentage (default 80%). Click "Trim." Files process in your browser session and download individually or as a ZIP — no sign-up, no watermark.

Why Trim MPEG-2 Video?

MPEG-2 (ISO/IEC 13818-2, also published as ITU-T H.262) is the codec that powered DVD-Video, ATSC over-the-air digital television, and most DVB-T / DVB-S satellite and cable broadcasts from the late 1990s through the 2010s. Trimming MPEG-2 lets you carve a usable clip out of a long DVD title or broadcast capture without leaving the codec — keeping compatibility with DVD authoring tools, set-top boxes, and editing pipelines that still ingest MPEG-2 program streams.

• Pulling a single chapter or scene from a DVD rip — A full DVD-Video title is one or more .VOB files muxed as an MPEG-2 program stream. Renaming the VOB to .mpg and trimming gives you the 4-minute musical number, deleted scene, or interview segment without re-authoring the disc.
• Removing commercials from broadcast captures — ATSC / DVB recorders save raw MPEG-2 transport streams. Trimming each ad break out of a 1-hour episode capture leaves the show intact at the original broadcast bitrate.
• Camcorder DVDs and HDV tapes — Consumer DVD camcorders and HDV camcorders (Sony, Canon, JVC) recorded MPEG-2 directly. Trimming lets you isolate the actual event footage and discard the dead-air segments at the head and tail.
• Educational and archival clips — Universities and broadcasters often hold MPEG-2 master tapes or DVD masters. Pulling a 90-second teaching clip from a 47-minute lecture keeps the source codec for the institutional archive.
• DVD authoring source material — DVD authoring suites (DVDStyler, DVD Architect, Encore) accept MPEG-2 elementary streams directly. Trimming MPEG-2 first means no re-encode round-trip when you assemble a new disc.
• Re-uploading without changing codec — When a target system (legacy edit bay, broadcast playout, public-access TV submission) requires MPEG-2 video, trimming in-format avoids rejection over codec mismatches.

MPEG-2 Trimming — Lossless vs Re-encode

This tool re-encodes the trimmed segment to give you frame-accurate cuts. That matters because of how MPEG-2 GOPs (Group of Pictures) work, and it's worth knowing the trade-off:

Approach	Cut accuracy	Quality	When it works
Re-encode (this tool)	Frame-accurate to the millisecond	Re-encoded once at chosen preset	Any cut point, any source
Lossless GOP-boundary cut	Aligned to nearest I-frame (typically every 0.5-0.6 s)	Bit-identical to source	Closed-GOP MPEG-2 only; cuts only land on GOP starts
Smart-render (hybrid)	Frame-accurate	Lossless except for the 1 GOP at each cut edge	Desktop tools (VideoRedo, SolveigMM, TMPGEnc)

DVD-Video uses closed GOPs by spec (multi-angle DVDs require it), with a maximum 18 frames per GOP for NTSC and 15 for PAL — about 0.6 seconds either way. Broadcast MPEG-2 often uses open GOPs, where the final B-frames of one GOP reference the next GOP's I-frame, which is why naive cuts on broadcast captures can show a frame or two of garbage at the seam.

MPEG-2 in Context — Where It's Still Used

System	Resolution	Typical bitrate	Notes
DVD-Video (NTSC)	720x480	4-9 Mbit/s (peak 9.8)	Closed-GOP MPEG-2 program stream
DVD-Video (PAL)	720x576	4-9 Mbit/s	Same spec, 25 fps interlaced
ATSC over-the-air (US legacy)	up to 1920x1080i	12-19 Mbit/s	Being phased to ATSC 3.0 (HEVC)
DVB-T / DVB-S SD	720x576	2-6 Mbit/s	Many regional channels still MPEG-2
HDV camcorder tape	1440x1080	~25 Mbit/s	Sony / Canon / JVC HDV (2004-2011)
Blu-ray (rare)	up to 1920x1080	up to 40 Mbit/s	Allowed by spec; H.264 / HEVC dominate

Frequently Asked Questions

Why does my trimmed MPEG-2 clip look slightly different from the source?

Because the cut is frame-accurate, the segment is decoded and re-encoded once at the quality preset you selected. At Very High and Highest the difference is imperceptible on normal viewing — MPEG-2 at 6-9 Mbps reproduces well. At Medium / Low the re-encode quantizes more aggressively and you may see subtle softening, especially in DVD source which is already quantized once. Use the Highest preset when the trimmed clip needs to look identical to the source.

Will the audio (MP2 / AC-3 from the DVD) survive the trim?

Yes. DVD-Video typically carries MP2 (MPEG-1 Layer II) or AC-3 (Dolby Digital) audio inside the MPEG-2 program stream. The trim preserves the audio tracks by default. If your source has multiple audio languages (common on commercial DVD rips), the first track is kept; for full multi-track preservation, demux the program stream first with a desktop tool.

Why won't lossless cutting work here?

Lossless cuts can only land on GOP boundaries — the I-frame that starts each Group of Pictures. On DVD MPEG-2 those boundaries occur every 15-18 frames (about 0.6 s), so a lossless cut would snap up to half a second away from the timecode you typed. For frame-accurate trimming the affected GOPs at each edge must be re-encoded. If you specifically need bit-identical middle bytes, desktop "smart render" editors (VideoRedo, SolveigMM Video Splitter, TMPGEnc) re-encode only the two edge GOPs and copy the middle untouched.

Can I trim DVD VOB files directly?

Yes — rename the VOB to .mpg (or upload as-is; the parser detects the MPEG-2 program stream regardless of extension) and trim normally. A standard DVD's VTS_01_1.VOB, VTS_01_2.VOB etc. are sequential 1 GB chunks of one logical title; if you need a clip that spans the chunk boundary, upload both VOBs and trim each separately, or use the dedicated Trim VOB page if you'd rather work in the .vob extension.

Will my trimmed clip still play on a DVD player or DVD authoring suite?

Yes — the output stays in MPEG-2 format with the resolution, frame rate, and audio codec preserved. DVD authoring software (DVDStyler, DVD Architect, Encore) and consumer DVD players accept the trimmed file as long as you keep the resolution at 720x480 / 720x576 and the bitrate within DVD-Video spec (peak 9.8 Mbit/s video, 10.08 Mbit/s total). The Very High preset stays inside that envelope.

How accurate are the start and duration fields?

Down to the millisecond. The fields accept fractional seconds (12.5, 90.125) or full HH:MM:SS.sss timestamps. Behind the scenes the trim seeks to the requested timestamp, decodes from the nearest preceding I-frame, and re-encodes the requested range. Cuts land within one frame of the typed value (33 ms at 30 fps NTSC, 40 ms at 25 fps PAL).

Are MPEG-2 patents still in force? Why does this matter?

The last US MPEG-2 patent expired on February 23, 2018, and worldwide patents expired by January 3, 2024 (Malaysia is the last holdout, with one patent due to expire in 2035). For practical purposes, MPEG-2 is now patent-free in essentially every jurisdiction, which is why open-source encoders, editors, and player libraries can implement and distribute MPEG-2 support without license fees.

What if I need to convert as well as trim?

Trim first, then convert — or convert first if your end target isn't MPEG-2. Common follow-ups: MPEG-2 to MP4 for modern playback, VOB to MP4 for DVD source, or Compress MPEG-2 to keep the codec but shrink the bitrate. For other MPEG-2 family formats see Trim MPG, Trim MPEG, and Trim M2V (the elementary video stream).

Can I batch trim a folder of broadcast captures?

Yes. Drop in dozens of .mpg / .ts files. Each file gets the same start / duration / quality settings or you can adjust per-file. Useful for stripping a fixed-length intro / sponsor block from every episode in a captured series. Output downloads individually or as a single ZIP.