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MPEG video fileTrailer:00 00 01 B7 (.mpeg)

.mpeg file signature | video/mpeg

MPEG Program Stream (MPEG-1 Part 1 (essentially identical) and MPEG-2 Part 1)

Safe

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

Extension

.mpeg

MIME Type

video/mpeg

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .mpeg files in Python

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) == signature

How to validate .mpeg files in Node.js

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

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

GET /api/v1/mpeg
curl https://filesignature.org/api/v1/mpeg

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .mpeg file?

A .mpeg file is a MPEG video fileTrailer:00 00 01 B7 file. MPEG Program Stream (MPEG-1 Part 1 (essentially identical) and MPEG-2 Part 1)

What are the magic bytes for .mpeg files?

The magic bytes for MPEG video fileTrailer:00 00 01 B7 files are 00 00 01 B3 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

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 fileTrailer:00 00 01 B7 (.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.