Nikon D3100 Video

[Alexandros]

My video plays in slow motion and the sound suddenly cuts off half way through.

Can anyone advise me please?

 

[KmH]

Your D3100 came with a user's manual. It's on one of the discs that came with your camera. My advice is to read the manual. If you have read the manual, again refer to the section that describes using the video feature.

 

[MTVision]

If you don't have the manual anymore then go to Nikons site and you can download it!

 

[fossilboy]

What card do you have? is there sufficient space?