Maybe I'm going about this whole thing the wrong way. I guess the way to go about this then is how to "fix" the current way of things where jumping around a video doesn't cause emby to get mad and quit transcoding/buffering or stop playback in the middle of an area you jumped forward then back to.
Example, I have seen a video before and I'm jumping around to find a particular point in the video.
• Emby will quit streaming and make me go back to movie/episode selection and restart the stream and I have to start over.
• Emby will jump around but if I jump backwards and watch an area that was already transcoded or buffered, emby will randomly stop what it's doing for about 30 seconds and may or may not start playback again without divine intervention.