problem capturing video to pc smoothly

[PEPPER]

I recently captured some video i shot to pc.I used windows movie maker to capture and nero 7 to burn.Id had problems before and someone said nero was crap for capturing,although id not had many problems.So i switched to wmm to capture and still im having the same problem.Below is a screenshot from the video i captured,and as you can see it is pixelated,and when the picture pixelates,i get a noise( sounds like an electrical,metally sound).Is this caused by what im capturing/burning with,is it a fault with the burner,or something else??.

[PEPPER]

Also here is the clip....ive never cleaned the heads on my dv camera either.....maybe thats a hint to do it.

http://youtube.com/watch?v=-ew4dKqjia8

[saltman]

Looks like dirty heads to me.

[PEPPER]

Im hoping thats all as ive heard someone else say the heads could be worn.Il give em a good clean tomorrow and see what happens.Thanks saltman for replying,i really appreciate your reply.