Article ID : 00054542 / Last Modified : 05/17/2016

Some .M4A files will not play using the Hi-Res Audio Player software.

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An .M4A file cannot be played back if it contains an .AAC audio file. The Hi-Res Audio Player software does not support the .AAC audio file format. Make sure that the .M4A file contains an .ALAC audio file for it to be played back by the Hi-Res Audio player software.