I don't have an answer because you have not supplied enough information such as file format you are recording in, I am Nikon, and have No problems.
Is the extension .MOV ( Apple Quicktime)
You need to supply all the information in a question.
There are many occasions when I have made a video, downloaded a video, received a video in a non standard format such as MP4, and THIS converts almost everything to everything
https://convert-video-online.com
ALSO converting Nikon to MP3
http://www.acrok.com/nikon-mov-video-converter/