Nikon D5100 choppy playback on Netbook- Video of telling hubby pregnant

I have a Nikon D5100 and the first video I shot with it was of me telling my husband that we're pregnant with our first child. I only have an Acer Netbook (for now, looking to upgrade very soon) and when I playback the video on my netbook it is extremely choppy and the words and sounds don't match up (video was shot in 1080P from camera)

I understand my little netbook may not be able to 'keep up' with the playback, but I'm afraid to delete the video from my SD card and camera because I don't know if I have a saved file of the video on my netbook that is choppy if it will be choppy still on a newer computer, or if the new computer would be able to play the file normally since it would be able to 'keep up'?

I hope this question makes sense: Basically I want to know, if the file saved to my netbook is choppy, does it mean it would play choppy when that same file is played on a new laptop?

Update codecs. You should be able to do it in Windows Media Player but you can also do it manually.

http://keerok-photography.blogspot.com/2011/05/video-not-working-in-computer.html

It does make sense to me. WMovieMaker and WMediaPlayer do not support all video formats. Not HD for sure.

VLC is a great player and plays everything.

Free players http://www.videolan.org/vlc/ http://www.apple.com/...quicktime/

Try this free video converter http://www.handbrake.fr/