[LowDead]

Update:

Working -

"C:\vidsoft\BD_Rebuilder\tools\nvenc\nvencc.exe" --avhw -i "L:\UHDBD\FLASH_GORDON_-_4K_UHD\BDMV\STREAM\02001.m2ts" --codec h264 --preset performance --bluray --qp-min 0 --multipass 2pass-full --vbr 0 --vbr-quality 20 --aq-temporal --keyfile "E:\WORK\FIXEDCRF\WORKFILES\VID_02001.CHP" --sar 1:1 --aud --pic-struct --vbv-bufsize 30000 --max-bitrate 35000 --gop-len 24 -o "E:\WORK\FIXEDCRF\WORKFILES\VID_02001.AVS.264"

Not working -

"C:\vidsoft\BD_Rebuilder\tools\nvenc\nvencc.exe" --avhw -i "L:\UHDBD\FLASH_GORDON_-_4K_UHD\BDMV\STREAM\02001.m2ts" --codec h264 --preset quality --bluray --qp-min 0 --vbr 11056 --aq-temporal --keyfile "B:\WORK\DG\WORKFILES\VID_02001.CHP" --sar 1:1 --aud --pic-struct --vbv-bufsize 30000 --max-bitrate 35000 --gop-len 24 -o "B:\WORK\DG\WORKFILES\VID_02001.AVS.264"

Difference: EDIT: NEVER MIND Just remembered I encoded the working one with Very fast setting so that is of course the difference with the preset. --preset quality vs. performance - Strange if this is it as the quality parameter should be better.

--multipass 2pass-full is absent in the non working one. Should it be there?

Otherwise the only difference I can see is the constant quality mode switch witch shouldn't have anything to do with it.

//LD