I have both the Fifth Element and Desperado Superbit DVDs and haven't experienced any playback trouble whatsoever, even with my Pioneer DV-343, which I paid a whopping $110 for. There isn't anything different between a "Superbit" DVD and a regular one, other than the fact that the bit rate of the audio and video is much higher. If I turn on the "bit meter" feature of my 343 (most Toshibas and Pioneers have one in my experience), a "Superbit" DVD averages 7-9mbps. Normal DVDs average 3-4mbps when being played back. I suppose it's possible that the high bit rate is exposing a software or hardware flaw that has gone undiscovered in the 9000ES to this point, but I would also have to think that any manufacturer tests their gear to make sure it can handle the full bandwidth of the DVD spec.
I had a 1st generation Panasonic DVD player 4 years ago that exhibited the same problem with some discs that your experiencing now. That was a often reported problem with that particular make and model. I would definitely try the Superbit discs in another machine, if possible. If they work there, I would contact Sony about the problem.
I had a 1st generation Panasonic DVD player 4 years ago that exhibited the same problem with some discs that your experiencing now. That was a often reported problem with that particular make and model. I would definitely try the Superbit discs in another machine, if possible. If they work there, I would contact Sony about the problem.