I bought a D5100 for my wife for Mothers' Day, and she's having issues with the movie function. Movies play back correctly on the camera, but after the files have been loaded onto the computer, the video plays in slow motion -- the audio plays at the proper speed. Any ideas what might be causing this, or how to fix it?
I've tried overwriting the firmware (we already had the most recent version, but thought it might have been corrupted), and I tried playing the movies using several players on the computer with the same result.
It occurred to me that since the camera was made in Japan, we might have that out of sync martial arts movie thing going; my wife thinks not. :~)