AMR
FLAC amafayela
I-AMR (I-Adaptive Multi-Rate) ifomethi yokuminyanisa yomsindo elungiselelwe ukubhalwa kwekhodi yenkulumo. Ivamise ukusetshenziswa kumakhalekhukhwini ukuqoshwa kwezwi nokudlalwa komsindo.
I-FLAC (I-Lossless Audio Codec Yamahhala) iyifomethi yokucindezelwa komsindo engalahleki eyaziwa ngokugcina ikhwalithi yomsindo yokuqala. Idumile phakathi kwama-audiophiles nabathandi bomculo.