Antenna data file

application/x-amiga-disk-format

Safe

Magic Bytes

Offset: 0
44 4F 53

Amiga Disk File (ADF) is a disk image format developed by Commodore International for the Amiga personal computer platform. It is primarily utilized for the preservation and emulation of legacy software by storing raw, sector-by-sector replicas of physical floppy disks. Although this format is technically obsolete, it remains the industry standard for archiving Amiga software libraries and is generally considered safe due to its simple, non-executable structure on modern host systems.

Extension

.adf

MIME Type

application/x-amiga-disk-format

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .adf files in Python

Python
def is_adf(file_path: str) -> bool:
    """Check if file is a valid ADF by magic bytes."""
    signature = bytes([0x44, 0x4F, 0x53])
    with open(file_path, "rb") as f:
        return f.read(3) == signature

How to validate .adf files in Node.js

Node.js
function isADF(buffer: Buffer): boolean {
  const signature = Buffer.from([0x44, 0x4F, 0x53]);
  return buffer.subarray(0, 3).equals(signature);
}
Go
func IsADF(data []byte) bool {
    signature := []byte{0x44, 0x4F, 0x53}
    if len(data) < 3 {
        return false
    }
    return bytes.Equal(data[:3], signature)
}

API Endpoint

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

Related Formats