Why can't I watch a video I created earlier today?

[WPCentral Question]

Today I took about a 10 minute video on my Windows phone. I took the video about 9 hours ago. Now, I can't play the video on my phone and even when I link my phone to my computer, I can't play it on the computer as well. Could it still be uploading somehow because of how long it was or why would the video not play? What can I do to watch the video I made?

 

[Nabkawe5]

If you used an SD card to record the video its probably a slow SD card which will NOT WORK, it'll show its recording and produce a bad file, If you want to buy an SD Card your bet should be a CLASS 10 ONLY memory card, have a good day.