Quote what is the difference between the available settings in H265 HEVC format :

between setting main or high ?

between setting speed or quality ?

Is there a difference in the final rendering ?

which setting do you use ?

thanks

I make a custom profile in 4K MP4 HEVC because the default settings are not good enough. I have it set to 128Mbps (the highest option) and I use hardware acceleration. With text and crossfades the rendering time is less than real time which is much faster than PD15 which gave me 1,8X real time. Of course ones Pc is of importance. I have just edited a 4K HEVC 128Mbps video shot from my Samsung NX1. It is 20 min long and the rendering time was 12 min with transitions (crossfades), text and 25 clips edited. That is only 0,6X real time!

128 apperas to be overkill even for 4K UHD.

HEC265 gives you a better image at a lower bit rate. For my 4K videos, increasing beyond 60Mb produces no further, readily discernable picture improvement. Even 35Mb looks ok in the absence of much motion.

Eugene 73s, WA6JZN ex DL9GC
CYBERLINK PLEASE ADD UHD BLU RAY BURNING SOFTWARE
PD14,
Win10,64bit.CPU i7 6700,16GB ,C= 480 GB SSD ,GPU GTX1060 6GB 1 fan. Plus 3 int, 4 ext HDD's for video etc.LG WH16NS40 reads UHD.
4K 24" ViewSonic monitor.Camera Sony FDR-A

There is no reason why one should render in lower bitrate than the camera is recording in. I have a NX1 with around 120Mbps. I am very pleased so far with PD16 because all the issues I have had with PD10-PD15 are gone. No more flames and corrupt scenes. I often had freezes with PD15....Not yet with PD16....... Corsair Vengeance C70, Asus Geforce GTX 1060
Asus Prime Z370-A, Corsair RMx 850, Samsung SSD 960 EVO M.2. Windows 10,
Corsair Vengeance LP 2X16Gb DDR4 RAM,Intel i7-8700K

Quote There is no reason why one should render in lower bitrate than the camera is recording in.

Depends on the intented use. I seriously doubt you would be streaming 120Mbps files from the internet. Plus the only way you can burn to disc at that rate is data disc. Intel i7 4770k, 16GB, GTX1060 3GB, Two 240GB SSD, 4TB HD, Sony HDR-TD20V 3D camcorder, Sony SLT-A65VK for still images, Windows 10 Pro, 64bit
Gary Russell -- TN USA

Quote

Quote There is no reason why one should render in lower bitrate than the camera is recording in.

Depends on the intented use. I seriously doubt you would be streaming 120Mbps files from the internet. Plus the only way you can burn to disc at that rate is data disc.

I stopped burning bluray discs when I got my first 4K camera 4 years ago (NX1 HEVC 3 years ago). I store everything on HDD:s (internal and external) or USB sticks which is cheaper and more convenient nowadays. Not many people have bluray players but new TV:s have USB for HDD:s and sticks and even for SD cards. If I could afford it I can upload my original files to Vimeo. I don´t get that high bitrate on YouTube but my uploads to YouTube from my HDD:s are free of problems. Corsair Vengeance C70, Asus Geforce GTX 1060
Asus Prime Z370-A, Corsair RMx 850, Samsung SSD 960 EVO M.2. Windows 10,
Corsair Vengeance LP 2X16Gb DDR4 RAM,Intel i7-8700K