Been catching up on the entire thread, now up to page 27 and the posts are now only 2 years old.
I sacrificed my vinyl collection in Europe 20 years ago because I deemed them to not be worth their weight in shipping costs to return back to the U.S., so I'm 100% digital. One of the factors I weighed was while I was living there, I purchased a DAT so I could create copies of CDs that I was able to borrow from my client's library, which was largely French garbage as it turned out. This slightly predates the availability of CD recorders for home entertainment systems.
I have discovered some modern sonic classics for demoing/evaluating components. I normally wouldn't bother with live recordings for critical listening, but there are a couple of standouts in my collection:
Diana Krall's Live in Rio on blu-ray. The opening track is one of the more sparse arrangements on the disc due to a backing orchestra, and I love the way the MWT handles the upright bass, making me grin as much as the player does.
Second is called the Legends of Jazz Showcase, a compilation of songs from the TV show hosted by Ramsay Lewis.
Next is from AIX Records that is mainly a vehicle for 3D video demonstration called Goldberg Variations Acoustica, but the company's raison d'etre is superior sound.
And finally, I splurged for the DSOTM blu ray package from 2011 which includes various DVDs and CDs as well. The blu ray has 3 sound options, including LPCM 2.0 sampled at 96Khz/24 bit.
My own 5.1 system is in a state of flux, and I'm currently working on infrastructure. I recently purchased 5 Transparent Audio ICs, with speaker wire to be upgraded next. I also bought the Walsh Center Channel speaker, the one pictured on the Ohm website link to the center channel page. I haven't brought that home from the office yet, because my TV needs to be raised 2 more inches to accommodate it.