I am also a little confused by all this. I have a large LP/CD library. My turntable desperately needs upgrading but I have an excellent universal disc player (Ayre). I have an Oppo BDP-105D which is not such a great disc player to my ears but works fine with USB and streaming Tidal. Here's my dilemma: If a music download can't equal the sound I can get from a SACD or DVD-A then it's not worth bothering with to me. I have downloaded a couple of HD Tracks albums in FLAC 192/24 and they sound very good but the files are HUGE, more than 5 GB. My entire music catalog in this format would require an entire farm of HDD's which seems like a sideways shift from physical media. Secondly, these downloads are pretty pricey IMHO, especially when you consider I can pick up mint condition used LP's, SACD's, DVD-A's, and what-not from sites like Discogs. I know that everyone more knowledgeable than I are making the shift so I must be missing something.