Amiga DiskMasher compressed archive (.dms)
.dms file signature | application/octet-stream
Amiga DiskMasher compressed archive
Magic Bytes
Offset 10
23 20 54 68 69 73 20 69 73 20 61 20 73 68 65 6C 6C 20 61 72 63 68 69 76 65
Sources: Apache Tika
All Known Signatures
7 signature variants are documented for .dms files across multiple sources.
| Hex Signature | Offset | Sources |
|---|---|---|
| 23 20 54 68 69 73 20 69 73 20 61 20 73 68 65 6C 6C 20 61 72 63 68 69 76 65 | 10 | Apache Tika |
| 1F 1E | 0 | Apache Tika |
| 30 31 37 34 33 37 | 0 | Apache Tika |
| 1F FF | 0 | Apache Tika |
| FF 1F | 0 | Apache Tika |
| 30 31 34 35 34 30 35 | 0 | Apache Tika |
| 44 4D 53 21 | 0 | Gary Kessler |
Extension
.dms
MIME Type
application/octet-stream
Byte Offset
10
Risk Level
Safe
Validation Code
How to validate .dms files in Python
def is_dms(file_path: str) -> bool:
"""Check if file is a valid DMS by magic bytes."""
signature = bytes([0x23, 0x20, 0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x61, 0x20, 0x73, 0x68, 0x65, 0x6C, 0x6C, 0x20, 0x61, 0x72, 0x63, 0x68, 0x69, 0x76, 0x65])
with open(file_path, "rb") as f:
return f.read(25) == signatureHow to validate .dms files in Node.js
function isDMS(buffer: Buffer): boolean {
const signature = Buffer.from([0x23, 0x20, 0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x61, 0x20, 0x73, 0x68, 0x65, 0x6C, 0x6C, 0x20, 0x61, 0x72, 0x63, 0x68, 0x69, 0x76, 0x65]);
return buffer.subarray(0, 25).equals(signature);
}How to validate .dms files in Go
func IsDMS(data []byte) bool {
signature := []byte{0x23, 0x20, 0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x61, 0x20, 0x73, 0x68, 0x65, 0x6C, 0x6C, 0x20, 0x61, 0x72, 0x63, 0x68, 0x69, 0x76, 0x65}
if len(data) < 25 {
return false
}
return bytes.Equal(data[:25], signature)
}API Endpoint
/api/v1/dms
curl https://filesignature.org/api/v1/dms
See the full API documentation for all endpoints and parameters.
Frequently Asked Questions
What is a .dms file?
A .dms file is a Amiga DiskMasher compressed archive file. Amiga DiskMasher compressed archive
What are the magic bytes for .dms files?
The magic bytes for Amiga DiskMasher compressed archive files are 23 20 54 68 69 73 20 69 73 20 61 20 73 68 65 6C 6C 20 61 72 63 68 69 76 65 at byte offset 10. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .dms file?
To validate a .dms file, read the first bytes of the file and compare them against the known magic bytes (23 20 54 68 69 73 20 69 73 20 61 20 73 68 65 6C 6C 20 61 72 63 68 69 76 65) at offset 10. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .dms files?
The primary MIME type for .dms files is application/octet-stream.
Is it safe to open .dms files?
Amiga DiskMasher compressed archive (.dms) 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.