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*Details: File format summary



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External signatures File extension: mp4
File extension: m4v
File extension: m4a
File extension: f4v
File extension: f4a
Internal signatures
Name MP4 Media File
Description Represents the following character sequence: {4}ftyp{0-64}(mp42|mp41|isom|iso2)*moov
Byte sequences
Position type Absolute from BOF
Offset 4
Byte order Little-endian
Value 66747970{0-64}(6D703432|6D703431|69736F6D|69736F32)*6D6F6F76
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