Hey all, I'm trying to take a ripped 4K UHD movie and convert it to 4k SDR. I have tried numerous programs including StaxRip, Tricycle, FFMPEG and Premiere SDR Conform. I have had partial success with StaxRip and Tricycle, however, I cannot seem to get lossless conversions. My original UHD mkv files are around 80gb but my converted SDR mkv files are around 18gb. This is the case even when using maximum quality settings (which takes 3 days to encode). I've seen ripped and converted movies online that state "Converted from 10 bit HDR to 10 bit SDR using tripple mixed Hable-Reinhard-JJ per scene+frame analysis algorithm". These movies are much closer in size to their original counterparts. Does anybody know what software has the capability convert HDR to SDR with lossless or near lossless quality? Or if you have used one of the programs above successfully, could you please share what settings you use? I've been researching this issue for about a week and I'm stuck. Thanks!