MPEG video file magic bytes (.mpeg)
.mpeg file signature: 00 00 01 B3 | video/mpeg
Category: Video
MPEG video is a digital video file format standardized by the Moving Picture Experts Group (MPEG), working under ISO and IEC. It is used for storing and distributing compressed video and audio in broadcasting, DVD-Video, online playback, and archival media. As a long-established standard, MPEG files are generally safe to open, though older encodings may offer lower compression efficiency and limited support in some modern workflows.
Magic Bytes
Offset 0
00 00 01 B3
Sources: Apache Tika, Wikipedia
All Known Signatures
3 signature variants are documented for .mpeg files across multiple sources.
| Hex Signature | Offset | Sources |
|---|---|---|
| 00 00 01 B3 | 0 | Apache Tika, Wikipedia |
| 00 00 01 BA | 0 | Apache Tika, Wikipedia |
| 00 00 01 | 0 | Gary Kessler |
Validation Code
How to validate .mpeg files in Python
def is_mpeg(file_path: str) -> bool:
"""Check if file is a valid MPEG by magic bytes."""
signature = bytes([0x00, 0x00, 0x01, 0xB3])
with open(file_path, "rb") as f:
return f.read(4) == signatureHow to validate .mpeg files in Node.js
function isMPEG(buffer: Buffer): boolean {
const signature = Buffer.from([0x00, 0x00, 0x01, 0xB3]);
return buffer.subarray(0, 4).equals(signature);
}How to validate .mpeg files in Go
func IsMPEG(data []byte) bool {
signature := []byte{0x00, 0x00, 0x01, 0xB3}
if len(data) < 4 {
return false
}
return bytes.Equal(data[:4], signature)
}API Endpoint
/api/v1/mpeg
curl https://filesignature.org/api/v1/mpeg
See the full API documentation for all endpoints and parameters.
Related Formats
Frequently Asked Questions
What is a .mpeg file?
A .mpeg file is an MPEG video file. MPEG video is a digital video file format standardized by the Moving Picture Experts Group (MPEG), working under ISO and IEC. It is used for storing and distributing compressed video and audio in broadcasting, DVD-Video, online playback, and archival media. As a long-established standard, MPEG files are generally safe to open, though older encodings may offer lower compression efficiency and limited support in some modern workflows.
What are the magic bytes for .mpeg files?
The magic bytes for MPEG video file (.mpeg) files are 00 00 01 B3 at byte offset 0. These bytes identify the file format more reliably than the extension alone.
How do I validate a .mpeg file?
To validate a .mpeg file, read the first bytes of the file and compare them against the known magic bytes (00 00 01 B3) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .mpeg files?
The primary MIME type for .mpeg files is video/mpeg.
Is it safe to open .mpeg files?
MPEG video file (.mpeg) files are generally safe to open. They are classified as low risk because they primarily contain data rather than executable code. However, always ensure files come from a trusted source.