{"success":true,"data":{"ext":"dvf","name":"Sony Compressed Voice File","description":"Sony Compressed Voice File (DVF) is a proprietary audio format developed by Sony for storing compressed voice recordings. It is used primarily in Sony voice recorders and dictation applications for speech notes, meeting recordings, and other low-bandwidth audio capture. The format is largely legacy and was common on older Sony hardware; it is generally considered safe, though support may be limited in modern media players and conversion tools.","mime":[],"risk_level":"Safe","signatures":[{"hex":"4D 53 5F 56 4F 49 43 45","offset":0,"sources":[{"name":"Gary Kessler","url":"https://www.garykessler.net/library/file_sigs_GCK_latest.html"}]}],"related":["msv"],"usage":{"python":"def is_dvf(file_path: str) -> bool:\n    \"\"\"Check if file is a valid DVF by magic bytes.\"\"\"\n    signature = bytes([0x4D, 0x53, 0x5F, 0x56, 0x4F, 0x49, 0x43, 0x45])\n    with open(file_path, \"rb\") as f:\n        return f.read(8) == signature","node":"function isDVF(buffer: Buffer): boolean {\n  const signature = Buffer.from([0x4D, 0x53, 0x5F, 0x56, 0x4F, 0x49, 0x43, 0x45]);\n  return buffer.subarray(0, 8).equals(signature);\n}","go":"func IsDVF(data []byte) bool {\n    signature := []byte{0x4D, 0x53, 0x5F, 0x56, 0x4F, 0x49, 0x43, 0x45}\n    if len(data) < 8 {\n        return false\n    }\n    return bytes.Equal(data[:8], signature)\n}"}}}