Today’s featured promo on MacUpdate features Media Rage 3.0.1 for US$15.95 (47% off, retail $29.95). Media Rage is a collection of tools for audio enthusiasts. It can edit information stored in MP3, AAC, FLAC, BWF, and Ogg Vorbis audio files in an easy and powerful manner. It can also assist you in cataloging, organizing, sorting, and updating thousands of audio files with ease.