For anyone interested in a catalogue of SACD discs, head to www.sa-cd.net
. From there, you can order via Amazon for somewhat decent pricing. Just checked, and they list 5,274 titles!
I would also concur with Dire Straits Brothers in Arms
as well as Miles Davis Kind of Blue
as reference titles for really good multichannel mixes to demonstrate your system.
As for the DAC discussion, I think the present trend is to get the digital signal into the newer receivers and go from there. As such, the multichannel DAC will not be as important for that work. With my new receiver, and the processing of standard 2 channel into multichannel via Dolby IIX, I've been enjoying the sound quality of my older CDs, listening to them in a new way that opens the sound stage.