Dolby® Digital (AC-3) is an industry-standard surround sound audio codec.
AC-3 designed to deliver 5.1 channels of audio to many popular forms of entertainment including DVDs; Blu-ray Discs; cable, broadcast, and satellite TV programming; PCs; and even video games. An advanced encoding/decoding technology, Dolby Digital reproduces multichannel audio to deliver a cinematic audio experience.
Dolby Digital Plus (E-AC-3) or enhanced audio codec is an advanced surround sound audio codec designed specifically for evolving media. From home theaters and PCs to mobile phones and online streaming, Dolby Digital Plus defines high-fidelity audio. You’ll get the renowned Dolby cinema experience from all your entertainment.