Hello!
I have no clue what the H264 maximum level does but the recommended setting are 5.2. I can change it up to between 6.0 and 6.2 at the most. Does a higher value increase the video/playback or does it benefit in any other way or should I just leave it as it is?
I’m runnig PMS on a HTPC.
Thanks!
Leave it as is.
Okey! What is it and what impact does it have?
Your Shield will burst into flame, slowly becoming a puddle of melted plastic and metal. 
Or possibly just that some videos won’t play until you change it back. 
See Wikipedia for the definition of H.264 level.
In general, higher the resolution, frame rate, or video bandwidth, the higher the H.264 level.
If you try to play a video with a higher level than the Shield setting, Plex will transcode the video. Example: Shield set to 5.2 and the video is 5.4.
If you change the Max Level to a setting higher than what the Shield actually supports, then try to play a video with that level, then playback may fail.
H.264 6.2 supports up to 8K 120fps video. I’ve never tried to play such a video so cannot say exactly what would happen, but most likely playback would just fail.
H.264 5.2 supports up to 4K 60fps video. Gemini Man was released on disc as a 4K 60fps video. The Shield handled it w/o any problems.
You can use MediaInfo or Plex’s GetInfo window to view the H.264 information for a video. See Investigate Media Information and Formats for additional info.
Thanks alot for all the info, very appreciated!
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