So upon further trouble shooting i have found the chrome cast its self is the problem. I thought maybe the problem might be that its doesn't receive a strong enough wifi signal so i started swapping it with other chrome casts in the house (I have 4, one on each TV, i never use the other three). When putting another chrome cast in the same position it works fine. No matter where i put the suspected bad chrome case it shudders.

I've tried restarting it and factory resetting it and it still shudders, going to exchange it for another one this week.

Is this when you are playing a movie? Videostream will transcode videos that won't natively play on chromecast, this is very cpu intensive.

No related to the size, but rather a bad encode. Usually seeking issues are related to the player requiring a keyframe to go to. If your video was made with very few keyframes then moving from one to the next may span many minutes. Try another copy of the movie? If it is something you ripped, use another program to rip it.

@Hamstrman +1, I too would like an answer to this please...

@Matthewlol Thank you for taking time to answer me - thou I am not sure how the answer could help me or others?

I have the same problem. Please help us !!!