Music today lives on portable devices, in computer hard drives and out on servers that deliver it over the Internet. Many of today’s customers are used to having their music choices with them everywhere they go, yet those same customers do not always understand the choices they have in making that digital music file have the best probability of sounding like the original recording. You can convey some basics to your customers that will make what you install sound and perform better for those with portable music players (such as an iPod).