NO, they are completely different. They use a different form of encoding and decoding. DVD players will play DVDs and CDs. SACD players play SACDs only. CD players play CD only. Some SACD players will play CDs are well. Universal players usually refers to something that plays CD, SACD, DVD, and DVD-A. DVD-A and SACD are higher resolution than CD or DVD, but neither one of the hi-res formats have nearly as much software. Most but not all hi-rez discs have surround sound encoded audio. Some DVD-A discs have companion video to the music.
