// REFERENCE
MP4 signature
Signature (hex): 66 74 79 70 (ftyp)
Offset: 4
An MP4 carries 66 74 79 70 (ftyp) at offset 4, followed by the brand (isom, mp42…). The same container serves .m4a, .mov and others.
Related tools
Work with this in:
Related
mp3
MP3 signature avi
AVI signature mkv
MKV/WebM signature wav
WAV signature flac
FLAC signature ogg
OGG signature
MP3 signature avi
AVI signature mkv
MKV/WebM signature wav
WAV signature flac
FLAC signature ogg
OGG signature
Signatures verifiable with CyberEscudo's magic-bytes identifier. Educational content.