.M4A File Description

The audio file format used by Apple in their popular iTunes Music Store often appears on your system with the ".M4A" filename extension. M4A can produce better audio quality than MP3 using less physical space for the files.

You can convert M4A files to MP3 with programs such as Graphedit.

Other Information For .M4A File Extension

• Company:

  M4A

• File Type:

  MPEG-4 Audio Layer File

• Identifying Characters (Hex):

  00 00 00 20 66 74 79 70 4D 34 41 20 00 00 00 00

• Identifying Characters (ASCII):

  ftypM4A