MP3
M4R iifayile
I-MP3 (i-MPEG Audio Layer III) yifomati yomsindo esetyenziswa ngokubanzi eyaziwa ngokusebenza kwayo ngoxinzelelo oluphezulu ngaphandle kokuncama kakhulu umgangatho womsindo.
I-M4R yifomati yefayile esetyenziselwa iithowuni ze-iPhone. Ngokwenyani yifayile yeaudio yeAAC enolwandiso olwahlukileyo.