I have a new HTPC w/JRiver and media files like BD movies, BD Music, DVD-A, DTS Audio, DVD Movies, DVD Music, etc.
I have a HT system but no HDMI pre/pro other than the Oppo103 is my pre-pro (for now). I was thinking of buying the future Emotiva XMC-1 pre/pro for HDMI and room correction plus USB DAC
I currently have:
Verizon FIOS TV HD Tuner w/DVR
Emotiva DMC-1 pre/pro w/component, optical, coax, 8-ch
Emoitiva MPS-1 7-CH amp
2 Seaton Sound MFW-15 SUBs
7 Onix Ref Ninja modified speakers (4 full range towers, center, 2 bookshelves)
Panasonic ZT60 65" Plasma
I can play everything disc at a time on my Oppo but I like my JRiver setup for ease of use.
My HTPC has a ASUS Z87-Pro motherboard with HDMI out
Haswell i7 4770k processor
16 GB Ballistic RAM
NO VIDEO card until I just added the low end ASUS Radeon 5450 as a test to replace motherboard HDMI out. If there was a benefit in a $200 video card I would buy it (note I don't play video games).
My Realtek HDMI driver say max channels 2 and I only hear stereo. With the motherboard I couldn't hear anything unless I used my USB Focal PC Speakers instead of HDMI. ASUS tech support had me swap motherboards but that didn't help.
I can use JRiver and send DLNA to Oppo and get surround sound movies.