MPEG to MP4 Converter

MPG and MPEG files hold MPEG-1 or MPEG-2 video, the formats of Video CDs, DVDs, digital TV and older camcorders and capture cards, usually with MP2 or AC-3 sound. They are large for their quality, and many phones, editors and web forms no longer play them. This converter re-encodes the picture as H.264 and the sound as AAC in an MP4 that plays everywhere, typically at a third of the size. TV recordings are deinterlaced automatically. Everything runs in your browser; nothing is uploaded.

How to use this tool

1. Choose one or more .mpg or .mpeg files.
2. Keep automatic deinterlacing, or choose "Always" for a capture that shows comb lines; choose a picture size and quality.
3. For recordings with several languages, enter the audio track number (the notes list every track).
4. Wait for the progress bar and download the MP4 files (several come as one ZIP).

Formula

MP4 size ≈ (video bitrate + 0.19 Mbps of sound) × length ÷ 8

H.264 at CRF 21 needs roughly a third to half the bitrate of MPEG-2 for the same picture, so a 6 Mbps TV recording usually becomes 1.5–3 Mbps. CRF keeps the quality steady and lets the size follow the content. MP2 and AC-3 sound becomes 192 kbps stereo AAC (or 5.1 AAC if you keep the channels); AAC or MP3 sound is copied unchanged.

Example

A 30-minute MPEG-2 TV recording at about 6 Mbps is 6 × 1,800 ÷ 8 ≈ 1.35 GB. As H.264 at CRF 21 it typically lands at 2–2.5 Mbps, so (2.2 + 0.19) × 1,800 ÷ 8 ≈ 540 MB. Encoding 54,000 frames of 576-line video at roughly 25 frames per second takes about 35–40 minutes on a recent computer.