Sony Compressed Voice File (.dvf)
.dvf file signature | application/octet-stream
Magic Bytes
Offset: 0
4D 53 5F 56 4F 49 43 45
Sony Compressed Voice File
Sources: Gary Kessler
Validation Code
How to validate .dvf files in Python
def is_dvf(file_path: str) -> bool:
"""Check if file is a valid DVF by magic bytes."""
signature = bytes([0x4D, 0x53, 0x5F, 0x56, 0x4F, 0x49, 0x43, 0x45])
with open(file_path, "rb") as f:
return f.read(8) == signatureHow to validate .dvf files in Node.js
function isDVF(buffer: Buffer): boolean {
const signature = Buffer.from([0x4D, 0x53, 0x5F, 0x56, 0x4F, 0x49, 0x43, 0x45]);
return buffer.subarray(0, 8).equals(signature);
}How to validate .dvf files in Go
func IsDVF(data []byte) bool {
signature := []byte{0x4D, 0x53, 0x5F, 0x56, 0x4F, 0x49, 0x43, 0x45}
if len(data) < 8 {
return false
}
return bytes.Equal(data[:8], signature)
}API Endpoint
/api/v1/dvf
curl https://filesignature.org/api/v1/dvf
See the full API documentation for all endpoints and parameters.
Frequently Asked Questions
What is a .dvf file?
A .dvf file is a Sony Compressed Voice File file. Sony Compressed Voice File
What are the magic bytes for .dvf files?
The magic bytes for Sony Compressed Voice File files are 4D 53 5F 56 4F 49 43 45 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .dvf file?
To validate a .dvf file, read the first bytes of the file and compare them against the known magic bytes (4D 53 5F 56 4F 49 43 45) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .dvf files?
There is no officially registered MIME type for .dvf files. Systems typically use application/octet-stream as a generic fallback when handling this format.
Is it safe to open .dvf files?
Sony Compressed Voice File (.dvf) 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.