With the SACDs and DVD-As I own, the sound quality is, IMHO, excellent for both. I like the video features on DVD-A, but the number of titles for SACD, if you like classical & jazz, is vastly superior. Thats about where i stand except there just isnt that much video on DVD-A that i have and most the time the video isnt HiRes audio. Maybe its just the ones i have.