Does Dolby E replace Dolby Digital?
Dolby E does not replace Dolby Digital: it is an encoding technology used only for professional distribution of audio, such as from television networks to affiliates through satellite communication or via hard media like digital videocassettes. Dolby E is specifically designed to allow numerous generations of encode/decode cycles that are sometimes necessary for the production and distribution of audio in a broadcast environment. Dolby Digital is designed to deliver digital audio to the home through digital television broadcast, DVD, or other media. As it is optimized for high quality at low data rates, Dolby Digital encoding should be performed after all final production decisions have been made and the next decode step would be in the consumers home.