SACD

My SCD777ES will also not read the SACD layer on dual discs.But will play SACD only discs.
It no longer matters, since I bought the Marantz SA-10.
(I was able to audition the Marantz for five days. I listened to the SA-10 drive play SACDs, CDs and via the Toslink from two five disc changers. The Marantz definitely had better sound than my Sony SCD777ES playing SACD or CDs..   And showed me more info from my CDs played on the changer via Toslink than I had heard before.   Some folks like SACDs a lot. I’ll take a well recorded CD any day.    SACDs are generally well recorded (or they would not bother to make the music into a SACD!) so comparing all CDs to SACDs IMO is unfair.
Plenty of average CDs, and only a percentage are well recorded enough for me to call them amazing. But the good ones are equal to any SACD.

Hey folks, to prove there's still life in SACD, check out:https://www.channelclassics.com from the Netherlands.

If all of my music sounded as good as the SACD of Vivaldi's Le Quarto Stagioni that they put out, all of my music would be on SACD. Rachel Podger and her Brecon Baroque has the best interpretation I've heard. 

I just got it in the mail and it was an emotional ride like I've hadn't had in years. Anyway, SACD done right sounds fantastic.

All the best,
Nonoise

Absolutely! nonoise.Happy Listening!

Channel Classics produces some of the finest SACD recordings, they are all classical, to hear the difference between theirs and regular CD's a state of art playback system would be required, on garden variety systems they all sound about the same.