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Supports: MPG, MPEG
.mpg and .mpeg extensions are accepted, and batches are supported.The video codec defaults to MPEG-2 and the audio codec defaults to MP2 to match the DVD-Video and PAL DVB profile. Both can be changed under Advanced settings if you need AC-3 audio for NTSC DVD or H.264 in an MPEG container for non-DVD playback.
The .mpg extension is ambiguous: per the MPEG-2 standard (ISO/IEC 13818, also ITU-T H.262), an MPG file is an MPEG program stream that may carry MPEG-1 video, MPEG-2 video, or sometimes both. Renaming a file does not re-encode it — converting through a real codec pipeline either upgrades MPEG-1 to MPEG-2 or remuxes existing MPEG-2 into a clean stream that DVD authoring tools and broadcast equipment will accept without complaint.
.mpg, normalising every file to MPEG-2 means consistent playback on hardware DVD players and set-top boxes that quietly drop MPEG-1 streams.If you only need a different container or codec rather than a strict MPEG-2 encode, MPG to MP4 (H.264 in an MP4 box) and MPG to MKV (multi-track Matroska) are usually a better fit. Going the other direction is at MPEG2 to MPG.
| Property | MPEG-1 (older .mpg) |
MPEG-2 (.mpeg2 output) |
|---|---|---|
| Standard | ISO/IEC 11172 (1993) | ISO/IEC 13818 / ITU-T H.262 (1996) |
| Typical container | MPEG program stream (.mpg) |
MPEG program stream / transport stream |
| Max practical resolution | 352×240 / 352×288 (SIF / CIF) | 1920×1080 (Main Profile @ High Level) |
| Interlaced video | Not supported | Native field and frame coding |
| Multichannel audio | Stereo only (Layer I/II) | Up to 5.1 (MP2 multichannel, AC-3, DTS) |
| Typical bitrate | ~1.15–1.5 Mbit/s (VCD) | 4–9.8 Mbit/s (DVD), up to 19.39 Mbit/s (ATSC) |
| DVD-Video compliant | No | Yes (with NTSC/PAL frame and rate constraints) |
| Broadcast use | Largely obsolete | DVB-S/T/C SD, ATSC, ISDB-T, cable headends |
| Parameter | NTSC | PAL |
|---|---|---|
| Frame size (D-1) | 720×480 | 720×576 |
| Frame size (4SIF / 4CIF) | 704×480 | 704×576 |
| Frame rate | 29.97 fps interlaced | 25 fps interlaced |
| Max video bitrate | 9.8 Mbit/s (peak) | 9.8 Mbit/s (peak) |
| Required audio | LPCM or AC-3 (MP2 optional) | MP2, LPCM, or AC-3 |
| GOP length | ≤18 frames closed GOP recommended | ≤15 frames closed GOP recommended |
.mpg is just a container extension — it can hold an MPEG-1 video stream, an MPEG-2 video stream, or both. "MPEG2" as a target tells the encoder to specifically output ITU-T H.262 / ISO/IEC 13818 video. If your source MPG already carries MPEG-2 video, the conversion is effectively a clean remux into a .mpeg2-named program stream; if it carries MPEG-1, the encoder upgrades the video to MPEG-2.
It re-encodes. The xconvert pipeline runs the file through a real video encoder so the output stream is guaranteed to be MPEG-2, not just a renamed extension. If you want a no-loss rename you would have to demux and remux the program stream yourself — and that only works if the input was already MPEG-2.
For PAL DVDs and most DVB-S/T workflows, MP2 (MPEG-1 Audio Layer II) is the safest default and is required as one of the audio tracks on PAL DVDs. NTSC DVDs require at least one LPCM or AC-3 (Dolby Digital) track, with MP2 allowed as an optional extra. Switch the Audio Codec dropdown to AC-3 if your authoring tool flags an MP2-only NTSC disc.
Stay inside the DVD-Video envelope: 720×480 at 29.97i (NTSC) or 720×576 at 25i (PAL), with peak video bitrate at or below 9.8 Mbit/s. A typical sweet spot is around 5–6 Mbit/s VBR for ~2 hours on a single-layer DVD-5; raise to 7–8 Mbit/s for shorter discs or higher-motion content.
Both, within profile limits. ATSC over-the-air and DVB-T HD tiers use MPEG-2 Main Profile @ High Level at 1920×1080i or 1280×720p, capped at 19.39 Mbit/s for ATSC. Pick a 1080p or 720p preset and a higher bitrate target if your downstream system expects HD MPEG-2 rather than DVD-grade SD.
Hardware lock-in. Every shipped DVD player decodes MPEG-2 in dedicated silicon, and many cable / satellite set-top boxes plus broadcast contribution links still demand MPEG-2 transport streams. H.264 and HEVC win on bitrate efficiency, but they cannot replace MPEG-2 in those installed-base workflows without replacing the boxes.
.mpg and .mpeg files?Yes. .mpg, .mpeg, and the rarer .m2v (elementary MPEG-2 video) all map to the same MIME type video/mpeg. Drop them in the same way; the converter detects the codec from the bitstream rather than the extension.
Yes. Open Trim → Time Range to cut a clip by start and duration, and use Specific file size or Constant Bitrate to land on a target output size. For longer projects where trimming is the main task, Trim MPG is more focused; for size-only work without changing codec, Compress MPG avoids the MPEG-2 re-encode.
There is no hard per-file cap, but very large source files (multi-gigabyte HD captures) are limited by upload size and connection speed, since your file must be uploaded to our servers for processing. For long DVD-style sources, trimming first or splitting the input is faster than a single multi-gigabyte pass.