Ok So i recorded some videos on my Canon 60D.  I transferred these to my computer and loaded then onto Movie player to be edited.  Unfortunately the clips are flicker (the images) but the sound is fine.  

Also when I play the clips on media player there is no flickering.

I have checked the format on the video and i believe it is MVI.

Can you make any suggestions why this might be happening.

Many thanks in advance.