Originally Posted by itznfb
The Plex Home Theater and the older version Plex Media Center are built off of XBMC. So if you think the video quality of XBMC is poor then I guess you could say Plex video quality is poor... I don't have any issues with it. They focus on other things because they don't develop the underlying playback which is, as I said... XBMC.
I haven't experienced any of the issues you've noted.
Actually I do think the XBMC playback quality is pretty poor, compared to the other options out there today. I don't know what playback engine it uses (I'm assuming some variant of ffdshow), but it doesn't look anywhere near as good as playback using the builtin WMC player that I spent a few minutes tweaking the playback settings. In Plex, I often get what I call a "flicker" effect, where on a relatively static image the background changes brightness every 1-2 seconds. I don't know what causes this, but the last time I saw this was years ago with more rudimentary players. I also occasionally get a strange codec error where all the pixels in part of the screen show portions of the video a few seconds back, which causes this strange effect where some of the image is current, and some of it is delayed. Again, this doesn't ever happen with WMC or MPC-HC, and I see it on a variety of hardware (older core i3-2100, core i5 3750k, GTX 770, etc.). So it appears XBMC hasn't upgraded their video technology for several years...
However, I'll repeat, NONE of these issues present themselves on mobile devices, using the mobile Plex players. So they at least got that right, but PC playback is woefully inadequate.