Skip to content

DSD Storage Facilityaudio file (.dsf)

.dsf file signature | application/octet-stream

Dreamcast Sound Format file, a subset of thePortable Sound Format.

Safe

Magic Bytes

Offset 0
44 53 44 20

Sources: Gary Kessler

All Known Signatures

2 signature variants are documented for .dsf files across multiple sources.

Hex Signature Offset Sources
44 53 44 20 0 Gary Kessler
50 53 46 12 0 Gary Kessler

Extension

.dsf

MIME Type

application/octet-stream

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .dsf files in Python

Python
def is_dsf(file_path: str) -> bool:
    """Check if file is a valid DSF by magic bytes."""
    signature = bytes([0x44, 0x53, 0x44, 0x20])
    with open(file_path, "rb") as f:
        return f.read(4) == signature

How to validate .dsf files in Node.js

Node.js
function isDSF(buffer: Buffer): boolean {
  const signature = Buffer.from([0x44, 0x53, 0x44, 0x20]);
  return buffer.subarray(0, 4).equals(signature);
}

How to validate .dsf files in Go

Go
func IsDSF(data []byte) bool {
    signature := []byte{0x44, 0x53, 0x44, 0x20}
    if len(data) < 4 {
        return false
    }
    return bytes.Equal(data[:4], signature)
}

API Endpoint

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

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .dsf file?

A .dsf file is a DSD Storage Facilityaudio file file. Dreamcast Sound Format file, a subset of thePortable Sound Format.

What are the magic bytes for .dsf files?

The magic bytes for DSD Storage Facilityaudio file files are 44 53 44 20 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .dsf file?

To validate a .dsf file, read the first bytes of the file and compare them against the known magic bytes (44 53 44 20) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .dsf files?

There is no officially registered MIME type for .dsf files. Systems typically use application/octet-stream as a generic fallback when handling this format.

Is it safe to open .dsf files?

DSD Storage Facilityaudio file (.dsf) 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.