@theophile ...Well put; at the end of the day. Just because you can own a full-tilt Bugatti doesn't mean you've the skill and snap to employ it without becoming another tragedy for the news @ 6. 👍😎
'cuse...
@richardbrand , for consideration...
"I believe vinyl groove modulations make significant contributions at wavelengths below visible light so lasers well into the ultraviolet spectrum would be needed. Rather like those used for SACD, Blu-ray and Ultra Blu-ray disks which can be read error-free by transports costing a few hundred bucks ..."
...a 3 laser head that tracks height above surface feeding the position (groove 'follower') 2nd to the reader 3rd. Arm beam c/f tube w/sorbothane coating, and maglev X/Y drives....B/T counter weight, lose the wires.
Or go direct to optical in some compelling fashion.
Anyway, start a gofundus, mess with some old BR players...rewatch this....
"...accounts' Got to have Soul!"
Give up, give in, get down.... ;) *L*