If I turn brightness up on the LG C9, I can see it goes to 64, which is 0%. The pattern goes from code value 4 through 100.
The reason I am sharing this is that there seems to be some belief that after a Calman calibration everything below 3% is clipped or crushed and that is not true at all. This may not play on the LG CX or at least a report from someone with a CX and C9 says it does not work on their CX but does work on their C9. I mention profile 7 and support only because the montage will hang in certain spots on the OPPO but plays on the LG directly. Playing through the Panasonic UB9000 just results in the HDR10 base layer playing. I know it works from a USB stick directly into an LG as well as through an OPPO. However, it works for my testing and development. This is profile 7 in an mp4, which is probably not really a supported scenario. I have compared HDR, in 4k to 1080p and SDR, in 4k to 1080p From the previous disc i found 4k to use twice the data of 1080p (using compression) So the SDR demo footage is regularly going up to 57. Here is a Dolby Vision 2.9 version of our dynamic range low pattern. At times the 4k SDR footage goes up to 115Mbps.
