I just did a rip of Superman the Movie using this disc. The current Blu has a lossy presentation of the Dolby Stereo mix, which sounds rather feeble - I thought laserdisc PCM would improve on it. I was wrong...
That's the bitperfect rip of side A in Audition - not only is it extremely quiet (peaking at around -9dB) but the fidelity is really very poor. I'm not inclined to take the time to sync this, but I won't delete the files just yet in case they're of use to someone.
More Superman mix info here, btw: http://andyfilm.com/mboard/viewtopic.php?f=1&t=4192