I have records and a PHONO unit that are 40 years old and still work! Chew on that for a second.
Now chew on this, are you going to capture that "elusive" (it sure is!) sound when the digital format keeps changing it's spots? It isn't even the same animal year to year. Punch cards to tape to 5.25 floppy, to 3.5" floppy, to optical dics (CD, SACD, super DVD and blure ray), ETC. This is but the physical media, the format media is even worse (serial, parallel, USB (several flavors), fire wire, ETC. Nothing is as fleeting as digital, or data as "lost" in the format cycle. Oh I know, YOU have it licked "this" time it's different! Did you put ALL your records on CD an throw them away (I didn't)? Well, when the optical format goes, so does your music.
I want to relax with my stereo. Plop in a (something) and LISTEN. I don't want to run an IT department to load music. And yes, I'm an engineer. I build my PC's as they go obsolete and wonder why my 40 year old records sound so good.
I would love to be able to use a blue-ray recorder and hi-res files for music. I've heard Blue-ray as a format is already on the way out since we all use MP3's!. A nice little disc with two hours of music won't tax my old body one bit getting up off the couch. And, it is easily moved about. Fidelity is as near what even the best systems to manage (better dynamic range than ANY system can manage!). Shoot the engineer and format an AUDIO digital standard.
A record is a great example of doing it right. It maxed out the media quickly, and stopped. Sure, there was wax drums, 78 and such but the fidelity was measurably poor. When LP's were developed, the fidelity was exception even to measuement. A record made today is no different than it was in 1970. Well, they can use digital DACs and screw it up! 24/196 can be that standard. Over 50 years and counting.
I'd say USB stick except that this "standard" can't be kept still long enough to make it "legacy" to anything except temporary data storage. My music media needs to be more than temporary, and so does the standard.