I use my phone to upload videos to YouTube (since my data is a lot faster than my home wifi) Some of the files I upload are .mov files. I've tried it with different phones. If I go on YouTube.com on a OnePlus 3 and click upload, I can see the .mov file and it uploads perfectly. When I try to use other phones like the Galaxy S7 or LG G5, the files just do not show up. Even though it IS in my phone. Why is this? How can I tell if a phone I buy is going to support .mov files or not?