This is not quite on topic for your specific situation, but Windows users have several software options for playing hi-rez digital downloads.
For my set-up, i have a Dell desktop-type PC, with a medium-end ATI video card. The video card has an HDMI connection out to my Denon receiver, which allows it to stream up to 24/192 FLAC formatted files as found on HD Tracks.
For software that plays hi-rez files, there are free alternatives like Foobar or Media Monkey. I use them on occasion, but keep my collection organized in JRiver Media Center (JRMC). I can also stream to multiple zones (like my bedroom) with JRMC, although not in hi-rez.
My digital music collection is on a 1.5TB hard drive, and i back it all up on redundant external hard drives.
My favorite thing about these digital files...i can speed up my 24/192 download of Oue's version of Rachmaninov's Symphonic Dances by 6% and make it into the absolute perfect version.