" It seems to me that what is needed is a stabilized motor controller, some inertial mass for the spinning disc and error detection/correction in the datastream."
I'm doubt the ideas will help change anything - the disk is spinning at higher speed [xN] then need for provide video stream at original speed, so decoding going stricly from buffer.
I agree, but I am frankly trying to find reasons to justify more than $200 for a BluRay player. What I keep seeing are things that actually degrade the signal path. At the same time, I'm trying to avoid triggering a jihad over high priced equipment.
I tend to spend $1k- 1.5k on an integrated receiver. I personally find that is the knee on MY personal cost/benefit curve. I certainly can see and hear the improvement with more expensive stuff though. Even more so with speakers.
The only thing I can really find with BD players is a sturdier build quality. I simply cannot find the performance improvement here, and I see an awful lot of subjective opinions about how stuff looks "crisper" or "astounding black levels". This is all stuff that shouldn't matter. As I said before, a good system should leave the signal in the digital domain as long as possible. A digital system doesn't degrade and isn't subject to noise polluting the signal path. Further, signal processing is better done in the digital domain (that will likely be controversial, but I stand by it) so if any tailoring such as volume adjustment, phase delays and frequency leveling are better done before the conversion.
An interesting side effect is that the high end enthusiasts will admit that the lower end players are quicker to react to real improvements, such as better decoders and media streaming. That is an argument for disposable players until features stabilize for awhile.
I think there is more than a little of the "Monster cable" effect. You spend $30k on an amplifier and you will be less willing to admit that a $200 BluRay player or a $10 HDMI cable can do its job and an overpriced solution will sound and look better.
Look, I have nothing against upper end equipment. However, in this case I can't see the performance justification and I think it would mostly provide a unit with heft and solidly built components, but no real performance improvements.
Sorry. I know I have probably ignited a flame war, but this is how I see this situation. I am definitely willing to be convinced I am wrong, but it is going to take more than the typical 'green marker' arguments to bring this engineer around.