Mastering for mp3
Careful dynamic Audio Mastering helps both CD's and other data-reduced formats to sound better. Internet radio and download sites do not always provide high-quality formats. Many listeners also use equalizer presets or dynamic plug-ins in their players and programs. Hyper-compressed music sounds again all the more shallow or even distorted.
Even for a compressed format, a precise Audio Mastering is worthwhile. However, compressed formats as a starting material is not suitable for the process. (see: data delivery).