Help with uploading video.

So, i have uploaded many videos to ns, many before the new video gallery but i have uploaded on since it has been changed. Anyways I am trying to upload our "movie" from this year. Ns says the max file size able to be uploaded is 800mb, my file is 758mb. So that should not be the problem. When i select the video and click ok it starts to upload and within 5 seconds says video uploaded..there is no way it uploaded that fast and the video is nowhere to be found in my media. Help would be much appreciated as I am excited to release our movie to the ns community....thanks again guys!