⎗ audio/mpeg

File Extensions

m1a, m2a, mp1, mp2, mp3, mp1a, mp2a, mpga

Magic Bytes

1. ID3v2 tag signature

   Offset	0	1	2
   Byte	0x49	0x44	0x33
   Char	I	D	3

Magic Bits

1. MPEG-1/2 Audio frame sync

   Offset	0	1	2	3	4	5	6	7	8	9	10
   Bit	1	1	1	1	1	1	1	1	1	1	1

References

• Media Type Assignment
• RFC 3003
• ID3v2.3 Specification
• Apache HTTP MIME Types
• MPEG Audio Frame Header