Hello Beatnik,
I have the RCA Tchaikovsky 6th. My copy has the correct layer for SACD. However, mine also has a defect. When playing the SACD layer, it is prone to "freezing up". It just stops playing. And it happens at random points, so I can't dismiss it as a surface defect.
For what it's worth, I didn't think too much of the performance. The sound quality is great when it plays through correctly (which has happened once or twice).
If you'd like, e-mail me offline. I'll send mine to you for free. I've got better sounding versions of it on vinyl, and better performances on both vinyl and CD. And I wouldn't mind knowing if the disc plays correctly on someone else's player.
Cheers.
Tom