Hello. I own a licence for PowerDVD Ultra 17 but while it happily, and smoothly, plays a 4K 'MKV' file on my PC, the 'frame capture' option is greyed-out. When I play the same file in the latest version of VLC, playback of the same 4K file is impossible beyond a few seconds (so can't exploit the 'frame capture' option). I researched the playback issue on the VLC forum but the suggested GPU-based workarounds had no positive effect whatsoever. I recently downloaded a media-player called '5K' but that kept crashing while trying to load the abovementioned file. According to VLC, the codec is 'MPEG-H Part 2/HEVC (H.265) (hevc)'. Can anyone suggest a 'PowerDVD' workaround or a media-player, with a 'frame capture' option, that will actually play this file? Cheers.