AIFF is developed by Apple Computer and is most commonly used on Apple Macintosh computer systems.It is uncompressed and lossless. But if you want to listen it on MP3 player or if you have limited space in your devices, you might as well convert aiff files to mp3 format which is of smaller size. And the video is a guidance on how to convert aiff to mp3 with iOrgSoft Audio Converter.