The Panasonic 820 is $400, and has an HDR optimizer. I own this model, and it's been a terrific player. I think it's on the 420, too, but that model lacks Dolby Vision support.I remain infuriated that this critical feature remains only available on a thousand dollar device. Panasonic can pound sand.
If the noise( which is not normal) bothers you, either sell the unit, or have it serviced from Panasonic if that is an option. That is not unhelpful criticism. That is good advice.I've been consistently insulted and ridiculed/laughed at on another forum in particular for even bringing this up -- even though someone else in that very thread mentioned he hears this noise too on his 9000 and other owners over on AVS have described this sort of "labored" loading noise that sounds like "sand is caught in the gears" -- so if that's where this is going to go here, please refrain from hurling unhelpful criticism.