Yes — i-.m4a ingagcina i-AAC okanye i-ALAC, ngoko iifayili ezilahlekileyo nezingalahlekileyo zisebenzisana noluhlu olunye kwaye kufuneka zicaciswe ngokuhlukileyo ngokujongwa. It is worth knowing before you overwrite an original you might need again.
Yintoni impazamo eqhelekileyo xa uxinzelela M4A audio files?