Get a Sony bdp-s590 they are cheap, do sacd via hdmi and they play bluray also.It won't read. The player behaves like the disc doesn't exist.
Yesterday I discovered that the laser is part of what's called the "optical block". They can be bought from Asian suppliers but are expensive. Like about the cost of the whole player itself when it was new.
Conclusion: I need a new optical block because they do fail (read numerous other threads on the web about this). I won't buy one because it's not worth the cost.
If I recall correctly spdif does not pass sacd only RCA, multichannel out, and some hdmi do.I've got a BDP-S480 and tried it with my preamp, but the preamp doesn't have HDMI, only USB. Tried that, but it didn't work. I now have the service manual and there's some diagnostics in it I'm going to try to see if a simple run thru of those straightens out the problem.