Files with the M4A extension are MPEG-4 audio files. You can usually find files with such formats in Apple’s iTunes Store as they tend to use it for most of their song downloads. Since these files can be large in size, most of them are encoded with Advanced Audio Coding to reduce the size.
While it is fairly common to unknowingly create duplicate MPEG-4 files, one should be aware of how to deal with them to free up storage space and fix the disorganization. Today we will discuss how M4A files work and how you can delete the duplicate M4A duplicate files.