That's what I thought I remembered ... "basic" DTS and Dolby Digital. But that might be "enough." My listening of ELP and ELP Tarkus was that the remixed STEREO CD had all the sound quality gains over the original CD, and the DVD-A of that new stereo mix did not sound noticeably better than the newly mixed CD. Still, after they went lossless on Aqualung's 5.1, I'd feel a bit cheated. I am still on the fence about buying Benefit. But Tull fan that I am, I am leaning in that direction.