I use Power Director 12 for 4k editing and it works well if given enough time to build the proxy files. At the moment my 4K video is about 90 minutes long, edited in 4 sections, then put together. Even that long no real problems with PD12.

When I convert the 4K to 2K and make a file the output looks very decent but of course a tad worse compared to the direct 4K playback as viewed on 2 K monitor.

Trying to use that 2K file to burn a BR disc fails, TSmuxer has a problem accepting it. Even though Mediainfo finds no fault in the file.

PD12 allows the direct production of a 2K BR disc with 4K source material, that unfortunately has too many artifacts.

PD may need a better algorithm for creating a 2D BR DVD using 4K source material.

Or fix the 2 year old 2 K file audio problem, the same that has haunted 60P BR disc creation.

For which JMONE had provided a fix.

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