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Supports: MPG, MPEG
MPEG and MPG are essentially the same format — both use MPEG video compression. The only difference is the file extension: .mpeg is the full name, .mpg is the 3-character abbreviation from the DOS/Windows 3.1 era when extensions were limited to 3 characters. Converting between them is useful when legacy software or hardware requires the .mpg extension specifically, DVD authoring tools expect .mpg files, media servers or playlist systems only recognize one extension, or you want to standardize file naming across a video library.
| Feature | .mpeg | .mpg |
|---|---|---|
| Compression | MPEG-1 or MPEG-2 | MPEG-1 or MPEG-2 |
| Video quality | Identical | Identical |
| File extension | 4 characters | 3 characters |
| Origin | Full standard name | DOS 8.3 filename convention |
| DVD compatibility | Some tools reject .mpeg | Universally accepted |
| Modern usage | Less common | More common for DVDs |
Yes. Both .mpeg and .mpg contain MPEG-1 or MPEG-2 video and audio streams. The difference is purely the file extension. However, this tool re-encodes the video, which lets you change the codec (e.g., from MPEG-1 to MPEG-2), adjust quality, resize, or trim during the conversion.
Use MPEG-2 video codec (the default) with MP2 audio codec (also the default for MPG output). This combination is the standard for DVD-Video and is compatible with virtually all DVD players and authoring software.
If you only need to change the extension and the file already contains valid MPEG data, renaming works. However, converting through this tool lets you simultaneously re-encode with a different codec, adjust quality/bitrate, resize resolution, or trim — which a simple rename cannot do.
Yes. Under Trim, select "Time Range" and enter a Start Time and Duration in seconds or HH:MM:SS.sss format. This extracts only the segment you need from the original MPEG file.
The default audio codec for MPG is MP2 (MPEG Audio Layer 2), which is the standard for DVD and broadcast MPEG files. You can change this under Audio Codec to AC3, MP3, AAC, or other options depending on your playback requirements.