My understanding is the Mac version has MP4 lossy audio files and AIFF lossless audio files while the PC version has wma lossy files and WAV lossless audio files.

Both WAV and AIFF files contain the same uncompressed PCM audio content. The AIFF file format was created by Apple to also contain metadata like album cover graphics in iTunes whereas WAV files do not.
_________________________
Jim Fogle - 2020 BiaB (734) RB (Build 5) Ultra+ PAK
Cakewalk - Zoom MRS-8 recorder
Desktop: i7 Win 10 build 2004, 12GB ram 256GB SSD, 4 TB HDD
Laptop: i3 64bit Win 10 build 2004, 8GB ram 500GB HDD
Music at: http://fogle622.wix.com/fogle622-audio-home