Created attachment 179181 [details] 3 files inside .zip (test.mkv and 2 screen captures) SUMMARY The "Render full color range" setting works opposite to what you expect When you check it, output file file looks with much brighter and washed colors. STEPS TO REPRODUCE 1-create new "HD 1080p 60 fps" project 2-add test.mkv (attached file) 3-copy this clip to timeline 4-Project>Render... --Output file= test.mp4 --Presets= Hardware Accelerated, NVENC H264 VBR --Interpolation= Lanczos (best) --Deinterlacer= BWDIF (best) --"Render full color range" CHECKED --Aspect Ratio= Horizontal(16:9) --CustomQuality= 100% --Encoder= 8 Threads OBSERVED RESULT The test.mp4 file looks with much brighter and washed colors. But if you leave the box unchecked, the result is indistinguishable from the original test.mkv. This can be verified by opening the files with SMPlayes or importing the new test.mp4 clip into kdenlive project (I have attached two images) EXPECTED RESULT The colors most faithful to the original video should be obtained by leaving "Render full color range" CHECKED SOFTWARE/OS VERSIONS I'm using Cinnamon desktop environment and kdenlive-24.12.2-x86_64.AppImage Kdenlive: 24.12.2 MLT: 7.30.0 FFmpeg KDE Frameworks: 6.10.0 Qt: Using 6.8.1 and built against 6.8.1 Debian GNU/Linux trixie/sid (Xcb) Build ABI: x86_64-little_endian-lp64 Kernel: linux 6.12.12-amd64 ADDITIONAL INFORMATION Same results are obtained with debian package