I used MCE 2005 Rollup 2 with nVidia PureVideo set to spdif out to test everything.
It has played everything I've thrown at it so far:
44khz DTS (sample and ripped DTS music)
48khz DTS 5.1 ES (Toy Story 1)
48khz DTS 5.1 (Santana Live Concert)
48khz DD 5.1 EX (Finding Nemo)
48khz DD 5.1 (most movies and HDTV)
have I missed anything? Oh, and of course your typical stereo stuff.
I still can't get over how the sound card just simply locks in to the new sampling rate automatically without me doing anything! There are no skipping, stuttering or anything and believe me, I've sat and watched plenty over the weekend.
Now, isn't RealTek ALC880 a common sound chip on many newer motherboards? If so, then couldn't all of them do this? The driver came from RealTek, not something MSI hacked up. Are there any standalone PCI sound cards with this chip also? Then can't those do bit-perfect sound on any mobo then?