@john32123666 said in What is HVEC?:
Most video/audio player now a days plays and support any format ...
Older equipment might pose an issue: I have a 2015-ish Sony "smart TV" with USB inputs. Sometimes it will play a video I've downloaded on this site, and sometimes not. I solve the problem with "Movavi Video Converter" that will convert virtually any format to any other format. I think it was about $50 US for a lifetime licence.
I have a custom setting in the software that uses codecs that I know my TV will accept. Sometimes the file size increases on conversion, which isn't a problem unless it becomes larger than 4GB which is the upper limit for a FAT32 file system. In that case, I use the same software to split the video into pieces.