Tha DAD format IS part of the DVD-A spec, just not quite as effecient at packing the data onto the disk as a "normal" DVD-A disk. But I digress, no the Muse Model 9 (one of the most UNDER-rated components I know of)will not play a DVD-A disk unless it also has information encoded on the DAD "format" which is actually more on the video side. The DAD format is STILL a perfectly valid format for 24/96 audio, it's just that not a lot of people are using it. By the way, if you own a Model 9, try it as a DVD player.....WOW... and not even progressive scan and nails my Sony 9000ES