@Lil klipsch, Here's what the UB820 has vs.the UB900:
- Dolby Vision HDR, (via firmware update by end of October or sooner)
- HDR10+ capable now
- HDR Optimizer ready now. Give you the ability to set the BD player to match your TV or projectors peak luminance so BD discs and streaming will not clip the bright details. With the Optimizer set to match your TVs luminance you see all of the detail in the sky and it's smoothly gradated.