Video Not playing

Hi,

I made a youtube video and converted to MP4, through torley's guide. The guide which lets you copy the link as mp4 format. I then pasted it in my parcel media. I could able to see the video without any problem, but others can't see the video, nor my laptop. No idea why this problem occured. Any help would be appreciated.

If the video is not private, would you mind posting what you pasted in the media tab here?