Let me guess, is your 4K video encoded with H.264 10 bit color?

I personally don't like this combination (H.264 + 10 bit color depth), which is a legacy encoding way for 10 bit color video (perhaps 3~5 years ago, it was popular and widely produced by custom video tools) before HEVC format becomes popular.

I consulted cyberlink previously, powerdvd doesn't support H.264 "10 bit color" video playback specifically. The color will be broken.
Except for that, HEVC 10 bit video playback has good quality on powerdvd.

Quote Let me guess, is your 4K video encoded with H.264 10 bit color?

I personally don't like this combination (H.264 + 10 bit color depth), which is a legacy encoding way for 10 bit color video (perhaps 3~5 years ago, it was popular and widely produced by custom video tools) before HEVC format becomes popular.

I consulted cyberlink previously, powerdvd doesn't support H.264 "10 bit color" video playback specifically. The color will be broken.
Except for that, HEVC 10 bit video playback has good quality on powerdvd.

I looked into file type and found its type is HEVC (H.265 main 10) and when I played with potplayer (with madVR) it has not any issue. Do you have any comment?

Thank you

The free opensource player has ffdshow (open source) decoder to handle the playback. It may work around many existing compatiblity issues freely between GPU and Windows decoders. (that's one of the biggest advantage when using a open source program)

Update your AMD GPU driver, then check the playback in powerdvd again.
If poor color still occurs, contact their support to address your concern.